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i r %|/|p|ATA Service Guide OL810 

WJP^"/%I/% Chapter About This Manual 



OigDATA® 

Service Manual 



OL810 

LED Page Printer 



Adobe Acrobat printable reference 

copy of the OKIDATA Service Training Manual. 

09/1 7/97 



Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the 
pictures rendered at 300 dpi, which is ideal for printing, but does not view on most 
displays well. 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Table of Contents 



Page 



Service Guide OL810 




About This Manual 




Front Cover 


1 


Manual Copyright 


2 


1 Specifications 




1 .1 Overview - General Information 


3 


1 .2 Physical Specifications 


4 


1 .3 Power Requirements 


5 


1 .4 Environmental Conditions 


6 


1 .5 Agency Approvals 


7 


1 .6 Operational Specifications - Compatibility 


8 


....1.6.02 Emulations 


9 




...1.6.03 Fonts 


10 




...1 .6.04 Front Panel Switches 


11 




...1.6.05 Interface Methods 


12 




...1.6.06 Menu Mode 


13 




...1.6.07 Paper Delivery Method 


14 




...1.6.08 Paper Feed Method 


15 




...1.6.09 Paper Loading 


16 




...1 .6.1 Paper Out Detection 


17 




...1.6.11 Paper Trays 


18 




...1.6.12 Print Methods 


19 




...1.6.13 Print Resolution 


20 




...1.6.14 Print Speed 


21 




...1.6.15 Symbol Sets 


22 


1 .7 Paper Specifications 


23 


1 .8 Memory Specifications 


24 


1.9 Consumables 


25 


1.10 Options 


26 


1.11 Reliability 


27 


2 Principles of Operation 




2.1 Principles of Operation - General Information 


28 


....2.1.02 Control Unit (CU) 


29 


Block Diagram: Control Unit 


30 


Main Control Board (OLMA) 


31 


Reception Control 


32 


Command Analysis Processing 


33 


Font Processing 


34 


Raster Buffer Read Operation 


35 


Engine Interface (l/F) 


36 


Memory Boards OLRA and OLRA-2 (Options) 


37 


Font Card (Option) 


38 




...2.1.03 Printer Unit (PU) 


39 



Table of Contents Page 

Block Diagram: Printer Unit 40 

Engine Board Controller (LLAT) 41 

EEPROM Operation 42 

Power Supply Unit 43 

High Voltage / Bias Voltage Circuits 44 

Fuser Unit 45 

Main Motor (Drum Motor) 46 

LED Array 47 

Registration Motor 48 

DC Fan 49 

Operation Panel 50 

Second Paper Tray Mechanism 51 

....2.1 .04 Sensors and Switches 52 

2.2 Product Operation - Electrostatic Printing 53 

....Diagram: Printing Process 54 

....Processes 55 
3 Maintenance 

3.1 Maintenance - General Information 56 
....3.1.02 Maintenance Items 57 
....3.1.03 Maintenance Precautions 58 

3.2 Disassembly/Assembly Procedures - General Information 59 
....3.2.01 Preliminary Items 60 
....3.2.02 Upper Cover 61 
....3.2.03 Stacker Open Switch Assembly 62 
....3.2.04 LED Head 63 
....3.2.05 RS232 Interface Board (OLSA, Option) 64 
....3.2.06 Memory Boards (OLRA-2 or OLRA, Options) 65 
....3.2.07 Main Controller Board (OLMA) and Second Font Card 66 
Board (OLCA) 

....3.2.08 Engine Controller Board (LLAT) 67 

....3.2.09 Main Motor 68 
....3.2.1 Idle Gear A, Idle Gear B, and Speed Reduction Gear 69 

....3.2.1 1 DC Fan Assembly 70 

....3.2.12 Power Supply Unit 71 

....3.2.1 3 Cover Open Microswitch Assembly 72 

....3.2.1 4 Paper Eject Roller Assembly 73 

....3.2.1 5 Paper Eject Sensor Lever and Rollers 74 

....3.2.16 Upper Unit 75 

....3.2.1 7 Cover Open Switch Actuator 76 

....3.2.1 8 Paper Eject Sensor Levers B and C 77 

....3.2.19 Fusing Unit 78 

....3.2.20 Metal Pressure Roller Assembly 79 

....3.2.21 Registration Sensor Lever and Toner Sensor Lever 80 

....3.2.22 Lock Lever Assembly 81 



Table of Contents Page 

3.2.23 LED Head Holder 82 

3.2.24 LED Holder Ground Plate 83 

3.2.25 Pressure Roller Assembly 84 

3.2.26 Transfer Charger Assembly 85 

3.2.27 Registration Roller Assembly 86 

3.2.28 High Voltage Connector 87 

3.2.29 Idle Gear and Post 88 

3.2.30 Paper Supply Unit 89 

3.2.31 Registration Motor 90 

3.2.32 Engine Connector Board, LLCC 91 

3.2.33 Hopping Roller A 92 

3.2.34 Separator 93 

3.2.35 Base Frame 94 

3.2.36 Ozone Filter 95 

3.2.37 Second Paper Feed Unit (Option) 96 

3.2.38 Second Paper Feed Unit Boards and Connectors 97 

3.2.39 Second Paper Supply Unit (Option) 98 

3.2.40 Cassette Spring (Second Paper Supply Unit) 99 

3.2.41 Registration Motor (Second Paper Supply Unit) 100 

3.2.42 Second Paper Supply Unit Control Board, LLFC 1 01 

3 Adjustments And Service Settings - General Information 1 02 

3.3.01 Drum Counter Reset 103 

3.3.02 Darkness Control 1 04 

3.3.03 Switch 1 Maintenance Mode 105 
..Actual Page Count 106 
..Modified Page Count 107 
..Fuser Counter Reset 1 08 
..Vertical Print Start Position Adjustment 1 09 
..Chart of EEPROM Parameters and Print Start Positions 1 1 
..Setting the LED Head Drive Time 1 1 1 

3.3.04 Smoothing Select 112 

3.3.05 DC Voltage Check (+5 vdc) 1 1 3 

3.3.06 Menu Operation - General Information 114 
..Menu Mode 115 
..Printing the Menu 116 
..Sample 117 
..Reset Menu to Factory Defaults 1 1 8 
..Menu Settings - Primary Menu - HP LaserJet III Emulation 1 1 9 
..Menu Settings - Primary Menu - IBM ProPrinter III XL 120 

mulation 

....Menu Settings - Secondary Menu - Both Emulations 121 

3.3.07 Key Combinations 1 22 

3.3.08 Resets 123 

4 Cleaning 124 



Table of Contents Page 

....3.4.02 Static Charger 1 25 

....3.4.03 Transfer Charger 1 26 

3.5 Lubrication 127 

3.6 Shipping Instructions 128 
4 Failure Analysis 

4.1 Overview - Introduction 129 
....4.1 .02 Printer Serial Number Identification 1 30 
....4.1.03 Firmware Revision Identification 131 

4.2 Reporting Problems 132 

4.3 Troubleshooting Updates 133 

4.4 Troubleshooting Tips 1 34 

4.5 Abnormal Output 135 

4.6 Fault Alarms - Using The Error Message Charts 1 36 
....4.6.02 Error Messages: Operator Lamp Flashes (Chart A) 1 37 
....4.6.03 Error Messages: Operator Lamp Does Not Flash 138 
(Chart B) 

4.7 Repair Analysis Procedures (RAPS) - Using The RAPS 139 
....4.7.02 RAP Index 140 

RAP 01 : Printer Does Not Initialize 1 41 

RAP 02: Paper Feed Jam 142 

RAP 03: Paper Jam 143 

RAP 04: Paper Size Error 144 

RAP 05: Fusing Problem 145 

RAP 06: PU Error 146 

RAP 07: Operator Panel Communication Error 147 

RAP 08: Communication Error Between PU and CU 148 

RAP 09: Loop Test Failure (RS-232C) 149 

RAP 10: Resident/Optional RAM Failure 150 

RAP 1 1 : Program ROM Failure 1 51 

RAP 1 2: Optional Font Card Failure 1 52 

RAP 1 3 : Receive Buffer Overflow 1 53 

RAP 14: No Display on Operator Panel 154 

RAP 15: Images are Light or Blurred 155 

RAP 16: Dark Background Density 156 

RAP 1 7: Blank Paper is Output 1 57 

RAP 1 8: Black Vertical Stripes 1 58 

RAP 1 9: Evenly Spaced Marks on Output 1 59 

RAP 20: Random Missing Output 160 

RAP 21 : White Vertical Stripes 1 61 

RAP 22: Black Page is Output 1 62 

RAP 23: Printing Incorrect Characters 163 

4.8 Printer Tests - General Information 1 64 
....4.8.01 Continuous Print (Rolling ASCII) Test 165 
....4.8.02 Font Sample Test 1 66 



Table of Contents Page 

...4.8.03 Hexadecimal Dump Mode 167 

...4.8.04 Serial Interface Loopback Test 1 68 

...4.8.05 Engine Test A 1 69 

...4.8.06 Engine Test B 1 70 

...4.8.07 Menu Print 171 

...4.8.08 Demo Page Print 172 
A Board Diagrams 

A.1 Overview - General Informationboard Diagrams 173 

A.2 Index To Charts 174 

....A.2.01 Main Controller Board (OLMA) 175 

....A.2.02 Engine Controller Board (LLAT) 1 76 

....A.2.03 Operator Panel Board (LLJB-2) 1 77 

....A.2.04 Engine Connection Board (LLCC) 178 

....A.2.05 Second Font Card Board (OLCA) 1 79 

....A.2.06 Power Connection Board (LLID) 1 80 

....A.2.07 Power Supply Unit 1 81 

....A.2.08 RS232-C Interface Board (OLSA) Option 1 82 

....A.2.09 Memory Boards (OLRA and OLRA-2) Options 183 

....A.2.1 Second Paper Feed Unit Controller (LLFC) Option 1 84 

....A.2.1 1 Second Paper Feed Unit Connection Board (LLIG) 185 
Option 

....A.2.1 2 Second Paper Feed Unit Connection Board (LLIF) 1 86 
Option 
B Illustrated Parts Listing 

B.1 Overview 187 

....B.1 .02 Definition of Terms 1 88 

....B.1 .03 Parts Ordering Information 1 89 

B.2 Charts 190 

....B.2.01 Printer 191 

....B.2.02 Printer Unit 192 

....B.2.03 Paper Trays 193 

....B.2.04 Upper Unit (1 of 2) 1 94 

Wrong diagram : Jim Fitzpatrick/Project 195 

Leader/Okidata; 11/12/96 

....B.2.05 Upper Unit (2 of 2) 1 96 

....B.2.06 LED Holder 197 

....B.2.07 Lower Unit (1 of 2) 1 98 

....B.2.08 Lower Unit (2 of 2) 1 99 

....B.2.09 Boards 200 

....B.2.1 Paper Eject Roller Assembly 201 

....B.2.11 Paper Supply Unit 202 

....B.2.1 2 Options 203 

....B.2.1 3 Font Cards 204 

....B.2.1 4 Second Paper Feed Unit 205 



Table of Contents Page 

....B.2.15 Packing Materials 206 

....B.2.1 6 Consumables 207 

....B.2.1 7 Documentation 208 

....B.2.1 8 Service Training Kit Revisions 209 



Page: 2 

Ai/IRATA' Service Guide OL810 

WJP^"/%I/% Chapter About This Manual 



This document may not be reproduced without the written permission of the Okidata Technical Training 
Group. Every effort has been made to ensure the accuracy of the information contained in this training 
course. Okidata is not responsible for errors beyond its control. 
Copyright 1994 by Okidata All rights reserved. 

First Edition May, 1992 P/N 58225901 

Second Edition June, 1993 P/N 58225902 

Third Edition November, 1994 P/N 58225903 

Written and produced by the Okidata Technical Training Group 

Please address any comments on this publication to: 

Okidata 

Attn: Publications 

532 Fellowship Road 

Mount Laurel, NJ 08054-3499 



OKIDATA is a registered trademark of Oki Electric Industry Company, Ltd.; marques deposee de Oki 

Electric Industry Company, Ltd.; marca registrada, Oki Electric Industry Company, Ltd. 

Bitstream is a registered trademark and Dutch, Fontware, and Swiss are trademarks of Bitstream, Inc. 

Fontware is licensed to Bitstream, Inc., in West Germany, France, and the United Kingdom by Electronic 

Printing Systems, Ltd. 

Centronics is a registered trademark of the Centronics Corporation 

Hewlett-Packard, HP, LaserJet, LaserJet+, LaserJet Series II, and LaserJet Series III are registered 

trademarks of Hewlett-Packard Company. 

IBM, PC, PC-DOS, and Proprinter XL are registered trademarks of International Business Machines 

Corporation. 

ITC Zapf Dingbats is a registered trademark of International Typeface Corporation. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 3 

f r %l/|F|ATA Service Guide OL810 

Wi/f^|L/r%I/» Chapter 1 Specifications 



1.1 OVERVIEW 

1.1.01 General Information 

The OL810 is a desktop page printer, using a stationary LED head and dry electrophotography as its 
exposure and development methods. The printer has a resolution of 300 x 300 dots per inch and a 
continuous print speed of 8 letter-sized sheets per minute. 

A one megabyte page memory is standard. It can be expanded (with two optional RAM printed circuit 
boards) for a total of five megabytes of printer memory. The OLRA memory board increases available 
RAM by 2 megabytes. The OLRA-2 memory board increases available RAM by 1 megabyte. Two optional 
memory boards can be installed at the same time. 

The printer features Oki Smoothing Technology (OST). The OST LED head provides edge smoothing to 
reduce the jagged stairstep effects of bitmapped images for improved print quality. The OST capability is 
selected through the SMOOTHING option of the printer menu. The default setting is SMOOTHING ON. 

Two emulations are available. The HP LaserJet III emulation has 42 fonts. The IBM Proprinter III XL 
emulation includes 26 fonts. Two optional font cards slots are available. Downloadable fonts are also 
accepted. 

A Centronics parallel interface is standard. An RS-232C serial interface is available as an option. 
Two consumables are used in the printer. The toner cartridge kit contains a toner cartridge, a fuser 
cleaner pad, and an LED lens cleaner. The other consumable, the image drum cartridge kit, includes an 
image drum cartridge and an ozone filter. 

A letter-size paper tray is included with the printer. Legal, envelope, executive, and A4 trays are also 
available. Paper feeding can be done automatically or manually. 

The printer will print on a variety of paper types, labels, envelopes, and transparencies. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 4 

Service Guide OL810 

Chapter 1 Specifications 



1.2 PHYSICAL SPECIFICATIONS 

1.2.01 Dimensions 

Width: 17.72 inches (450 millimeters) 
Height: 6.02 inches (153 millimeters) 
Depth: 17.72 inches (450 millimeters) [Does not include paper tray] 

1.2.02 Weight 

24 pounds (approximately 1 1 kilograms) [Without options] 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 5 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.3 POWER REQUIREMENTS 

1.3.01 Input Power 

120 VAC +5.5%, -15% 
220/240 VAC +/- 10% 

1.3.02 Power Consumption 

Approximately 800 W maximum during operation 
Approximately 22 W maximum during stand-by (Fuser is OFF) 

■ 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 6 

Service Guide OL810 

Chapter 1 Specifications 



1.4 ENVIRONMENTAL CONDITIONS 

1.4.01 Acoustic Rating 

Operation: 50 dB maximum 
QUIET Mode: 43 dB maximum 

1.4.02 Altitude 

10,000 feet (3,050 meters) 

1.4.03 Ambient Temperature and Relative Humidity 

While operating: 

50 to 90 degrees Fahrenheit (10 to 32 degrees Celsius) 

20 to 80% Relative Humidity 

While in storage: 

- 4 to 1 1 degrees Fahrenheit ( - 20 to 43 degrees Celsius) 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 7 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



1.5 AGENCY APPROVALS 

1.5.01 Listings 

FCC Class B 

UL478 Version 5 

CSA 22.2 220 

Radio Frequency Interference (RFI) 

Canadian Department of Communications Radio Interference Regulations 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 8 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.6 OPERATIONAL SPECIFICATIONS 

1.6.01 Compatibility 

Standard 

HP LaserJet II 

HP LaserJet III /IMP 

IBM ProPrinter IIIXL 

Option 

Diablo 630 

Adobe PostScript with ATM 2.0 

Auto Emulation Switching Software 

Adobe Type Manager Software 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 9 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



1.6.02 Emulations 

Standard 

HP LaserJet II 

HP LaserJet III /IMP 

IBM ProPrinter IIIXL 

Option 

Diablo 630 

Adobe PostScript with Adobe Type Manager 2.0 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 10 



OKIDATA 



Service Guide OL810 

Chapter 1 Specifications 



1.6.03 Fonts- Resident 

HP III Emulation: 42 resident fonts 

IBM Proprinter III XL Emulation: 26 resident font styles 

13 Scalable Resident Fonts 

CG Times, Univers, Univers Condensed, ITC Zapf Dingbats 

Available in various styles and weights. 

42 Bitmap Resident Fonts 

All styles portrait and landscape 

Courier 10 point, Courier 12 Point, Dutch 8 point, Dutch 10 point, Dutch 10 point compressed, LN Printer, 

Swiss 



Resident Fonts 

13 Sahble: 



42 Bitmap Kmkk 
[all styles portrait and landscape) 



Optional 

Bitmap Font Cards 
Roman 
Prestige Elite 
Letter Gothic 
OkiPro 65 
MicroDocs 
TAX 

BarCodes Plus 
Scalable Font Cards 
WP Scalable 
Dazzling Presentations 
Special Documents 



CG Times, BoW, Italic, Bold Italic 
Univers* , Bold, Italic, Bold ttatic 
Univers Condensed, Bold, Italic, Bold Italic 

nr,^rDi«ifihats*oav**# 

Courier lOpt. Medium, Bold, Italic 

Courier I2pt .Medium, Bold, Italic 

Dutch™ 8pt. Medium {B&F}* Medium Compressed (B) 

Dutch lOpt Medium (B), Bold (Bl, Italic |B) 

Dutch 10pt, (Compressed) Medium (B&F), Bold (B&F), Italic (B&F) 

LN PMnt*r 8.5 Medium IWeLI 

Swiss™ Bold 14.4pt. m?) 



WP Scalable 
Pwr #70021501 
(MI^WiirdPcrfccL .Scalable) 

Ct5 t>nti>ry Hchmilhonk " 

I'tl t infflnr SflirMtjhixitk ItttUr 

CG ItiHurj' Sfhoolboolt Hold 

CG Ctntuiy Srttnolbook Held Italic 

C(j J'tfluml Null. 
CG tMjci.t hold 

FvhjrQ- 1 bovk HI 
Firiura 8i>oJr ItoJic U 
FWrqfcoUU 
ftrfrfo loW 1*1* A 



I'm: <,;jiiuni ■ 

J7< titJlwrJ SuiIh 
ITC GjUnrJ |l.,|.i 

ITt; i.*)tlarj ktH Stmltt 
Afljtnui" HpniUim 
AJfcmut Lxlnbold 

K( ' -iiyv i * J", n v - '(rnfinn ludu 
Mfcru»tyt« Qold 



Dazzling Presentations - 
Pan # 70021401 (HP=Rrillian[ 

I 'resent. [/Compeilmj; Pubs, ID 

ITC. lleiK.inirit^ Kuifh 
lit ' Jlfrifljii.U linn* lijilit 
ITC BenQulat Bold 
ITC Bengulit BoU Italic 

CEr H-allll]" ll"»t 

CC lljxliu: lliJil 

i;(, fl.tntjIH Unfit It.itii 

rrc.: itiK>vri»iti* jjhih 

I'JT: dfrmk'UNiN *A;'X /(fifu- 

TTC HofckniJii D*mJ 

fTC Bookman &rm( ffiiflc 

tfjr^iiuriil ' Aikii>|iu 
t jjr^iihitLiil I tallili-tl 

lr.lF.dA'-!..j' ^lll'll 

<piirdwWlLNnfi ttjihf'til 
*. t, 'limtii " 

( «, f JfwvJ.J tt.lHn 

( (. DntfUJ gold 

Rtwit" 

ihonrum' Hi-ub 
bftVNuiij'i fWjrinjjr 
$h*nnon Bald 
Shannon- tilrfttwjM 



Special Documenrs - 

Pail #70021301 

{111'= Distinctive Docs. 1/ 

(/impelling Pubs. I) 

Antique Olive'" 

Antique Oitv$ italic 

AntKtu* Qllwe Bold 

Jtmtlaua Wlw* tompi H 

CG (fenlury WcliiKhHnmk 

i '(• t 'rtitury fir'tiftlt*/"^ Itntw 

Cti Udrttury Schoolbook fbplrt 

t,Y; On fur? .Si-flwtormfc Hold Italic 

t'li I'.ilili'Ut 

( L. mttlrW l!"lu 

CG Pjl^rhl Hflld 

CG Palario HuU "«Jr. 

(TC SfHim'Mlf* l.irjlil 

rrc .ScihxivFiir l.rqJir J(oJji 

ITC Souvmlr n*rm 

If C 5#uu*nlr U*ml tfn'lt 

Stymie* Medium 

Siynur /fci'JuJii JJcjJji. 

Sly ml* Bold 

SfyniJe BoW JICJJC 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 11 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.6.04 Front Panel Switches 

MENU 1 / Menu 2 
ENTER / Quiet 
LAST - / Smoothing 
NEXT + / Demo 
RECOVER /Reset 
PRINT FONTS / Print Menu 
FORM FEED/ Tray Select 
ON-LINE/ 
Italicized Items 

To access, press switch for two seconds. 

■ 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 12 

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Wi/f^l^V%I/» Chapter 1 Specifications 



1.6.05 Interface Methods - Standard 

Centronics Parallel Interface 

Optional 

RS-232C Serial Interface 

Auto Interface Switching (with RS-232 Option) 

AppleTalk (with PostScript option) 

■ 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 13 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.6.06 Menu Mode 

Menu 1 

Press ON-LINE to take the printer OFF-LINE. (READY will not be lit) 

Press MENU 1 

Menu 2 

Press ON-LINE to take the printer OFF-LINE. (READY will not be lit) 

Press MENU 1 / Menu 2 for more than two seconds 

Printing the Menu 

Press ON-LINE to take the printer OFF-LINE. (READY will not be lit) 

Press and hold PRINT FONTS / PRINT MENU until the message PRINT MENU is displayed in the 

message window. 

Each menu has several categories. 

To move between categories, press MENU 1 . 

Each menu category has several possible settings. 

The current setting is indicated by an asterisk. 

To view the settings, press NEXT + to move to the next setting. 

Press LAST - to move to the previous setting. 

When the desired setting is displayed, press ENTER to select and store the setting. 

Press MENU 1 to bring up the next menu category. 

To save the menu changes / settings and exit menu mode, press RESET. 

For more information regarding the menu, refer to Section Three of this Service Handbook or the Printer 

Handbook. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 14 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



1.6.07 Paper Delivery Method 

Face down 

200 sheets capacity 

Face up 

100 sheet capacity 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 15 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.6.08 Paper Feed Method 

Automatic Feed 
Standard Tray (Top) 
Optional Second Tray (Bottom) 
Manual Feed 

NOTE: Use Manual or Standard Tray (Top) for single sheet, envelopes, labels, and transparencies. 

■ 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 16 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.6.09 Paper Loading 

Automatic 

200 sheet capacity, standard 
200 sheet capacity, optional 
Manual 

One sheet at a time 
■ 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



Page: 17 



1.6.10 Paper Out Detection 

Standard Tray (Top) 

The paper end lever in the paper supply unit contacts the paper. 

When paper is installed, the lever clears sensor S1 on the engine connection board. 

When paper is not installed, the lever blocks sensor S1 on the engine connection board. 

Optional Second Tray (Bottom) 

The paper end lever in the optional second paper feed unit contacts the paper. 

When the optional second paper feed unit is installed, the lever clears sensor S1 on the second paper 

feed unit controller. 

When the optional second paper feed unit is installed, the lever blocks sensor S1 on the second paper 

feed unit controller. 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 18 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 1 Specifications 



1.6.11 Paper Trays 

Letter 

Legal 

Executive 

A4 

Envelope 

Universal 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 19 

Service Guide OL810 

Chapter 1 Specifications 



1.6.12 Print Methods 

Development Method 

Dry electrophotography 

Exposure Method 

Stationary LED Head (LED Array) 
Number of LED Elements: 2560 

CAUTION: The OST LED Head for the OL810 is NOT interchangeable with non-OST printers. 

■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 20 



OKIDATA 



Service Guide OL810 

Chapter 1 Specifications 



1.6.13 Print Resolution 

300 x 300 dots/inch 

Oki Smoothing Technology 

Creates a series of "sub-scans" which allow the printer to automatically modulate the size and placement 
of the dots used to form characters and images. 

Through this combination of larger and smaller dots, the boundaries of letters and curves are filled in and 
smoothed out. This results in straighter edges, curves that really curve, sharper corners and crisper type. 

1-6-08.pcx 



(arm of mkr$wni) 



nih Smwtlhiti'j. 
tfthtitihi'fi 




v it/tout Smm&iu£ 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 21 

| r %|/|p|ATA Service Guide OL810 

Wi/P^i^/%I/» Chapter 1 Specifications 



1.6.14 Print Speed 

First print: 28 seconds maximum (letter size) 

Continuous print: 8 sheets per minute (letter size) 

Warm-up time: 45 seconds maximum temperature 77 degrees Fahrenheit (25 degrees Celsius) and rated 

voltage (120 VAC) 

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Page: 22 

| r %|/|p|ATA Service Guide OL810 

Wi/l^i^/%I/» Chapter 1 Specifications 



1.6.15 Symbol Sets 

Thirty-nine symbol sets are available through the OL810. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 23 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



1.7 PAPER SPECIFICATIONS 

1.7.01 Types 
CAUTION: 

All items must be designed for xerographic (laser) printing. 

All items must be designed to withstand the heat of the fusing process (190 degrees Celsius and above). 

Envelopes, labels, and transparencies should only be fed from the top paper tray or manually. 
DO NOT use the optional second paper feed mechanism for envelopes, labels, or transparencies. 

Envelopes should not have flaps or seams that cross the print area. 

Use a wove or bond texture paper. Avoid cockle, linen, or laid paper. 

Okidata DOES NOT recommend using embossed paper. 

Okidata DOES NOT recommend using coated papers (unless they are specifically designed for laser 
printers). 

Avoid papers with high cotton or rag content. 100% wood pulp papers work the best. 

Pre-printed forms MUST BE printed with a heat resistant ink that can withstand the heat of the fusing 

process (190 degrees Celsius and above). 

Cutouts are pages with some portion removed. The printer will print on pages with cutouts less than 
0.375" in diameter. The print must be more than 0. 1 " from the edge of the cutout. 

The printer will print to within 0. 1 " from the edge of a ring hole or perforation. Make sure that the holes and 
perforations are clean and free of burrs. Burred perforations may cause paper jams. 

Letter 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Width: 8.5 inches (216 millimeters) 

Length: 11 inches (279 millimeters) 

Paper Feed Path: Automatic 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

Legal 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 
Maximum: 24 lbs. (90 g/m 2 ) 
Recommended: 20 lbs. (75 g/m 2 ) 



Width: 8.5 inches (216 millimeters) 

Length: 14 inches (356 millimeters) 

Paper Feed Path: Automatic (with optional paper tray) 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

Executive 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Width: 7.25 inches (184 millimeters) 

Length: 10.5 inches (267 millimeters) 

Paper Feed Path: Automatic (with optional paper tray) 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

A4 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Width: 8.27 inches (210 millimeters) 

Length: 1 1 .69 inches (297 millimeters) 

Paper Feed Path: Automatic (with optional paper tray) 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

A5 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Width: 5.83 inches (148 millimeters) 

Length: 8.27 inches (210 millimeters) 

Paper Feed Path: Automatic (with optional paper tray) 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

A6 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 
Maximum: 24 lbs. (90 g/m 2 ) 
Recommended: 20 lbs. (75 g/m 2 ) 
Width: 4.13 inches (105 millimeters) 
Length: 5.83 inches (148 millimeters) 



Paper Feed Path: Automatic (with optional paper tray) 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 



B6 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Width: 7.17 inches (182 millimeters) 

Length: 10.12 inches (257 millimeters) 

Paper Feed Path: Automatic (with optional paper tray) 

Manual 

Paper Delivery: Face up 

Face Down 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

Envelope 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Size: Minimum: 3.5 x 7.5 inches (89 x 191 millimeters) 

Maximum: 7.2 x 1 0.1 inches (1 83 x 275 millimeters) 

Business 4.12 x 9.5 inches (105 x 241 millimeters) 

C5 6.4x9.12 inches (163x232 millimeters) 

DL 4.36 x 8.77 inches (1 1 1 x 223 millimeters) 

Monarch 3.87 x 7.5 inches ( 98 x 191 millimeters) 

Paper Feed Path: Automatic (with optional paper tray) top paper tray ONLY 

Manual 

Paper Delivery: Face up ONLY 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

Face up deliver ONLY 

ONLY feed from the top paper tray OR manually 



Do NOT use envelopes with tiiis design. 



Use envelopes with this design. 





Labels 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 
Maximum: 24 lbs. (90 g/m 2 ) 



Recommended: 20 lbs. (75 g/m 2 ) 

Width: 8.5 inches (216 millimeters) 

Length: 14 inches (356 millimeters) 

Paper Feed Path: Automatic top paper tray ONLY 

Manual 

Paper Delivery: Face up ONLY 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

Face up deliver ONLY 

ONLY feed from the top paper tray Off manually 

Transparencies 

Weight: Minimum: 16 lbs. (60 g/m 2 ) 

Maximum: 24 lbs. (90 g/m 2 ) 

Recommended: 20 lbs. (75 g/m 2 ) 

Width: 8.5 inches (216 millimeters) 

Length: 14 inches (356 millimeters) 

Paper Feed Path: Automatic (top paper tray ONLY) 

Manual 

Paper Delivery: Face up ONLY 

Notes: Must be designed for xerographic (laser) printing 

Must be designed to withstand the heat of the fusing process (190 degrees Celsius and above) 

Face up deliver ONLY 

ONLY feed from the top paper tray OR manually 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 24 



OKIDATA 



Service Guide OL810 

Chapter 1 Specifications 



1.8 MEMORY SPECIFICATIONS 

1.8.01 EEPROM 

EEPROM stands for Electronically Erasable Programmable Read Only Memory 
Main Controller EEPROM 
1024 x 1 bit serial input/output 
Engine Controller EEPROM 
1024 x 1 bit serial input/output 

1.8.02 ROM 

Main Controller Program ROM (2) 

1 Mbyte 

1 Mbyte 

Engine Controller ROM 

None installed; masked to the CPU 

1.8.03 RAM 

Resident RAM = 1 Mbyte 

Expansion RAM (Options) 

Memory Board (OLRA-2) 

One Mbyte 

Memory Board (OLRA) 

Two Mbyte 

NOTES: 

Total installed RAM cannot exceed 5 Mbyte 

Two optional memory boards can be installed at the same time in the OL810. 



Standard 
Memory 
(1 Mbyte) 


Optional 
OLRA-2 
(1 Mbyte) 


Optional 
OLRA-2 
(1 Mbyte) 


Optional 
OLRA 
(2 Mbyte) 


Optional 
OLRA 
(2 Mbyte) 


Total Memory 


Installed 










1 Mbyte 


Installed 


Installed 








2 Mbyte 


Installed 


Installed 


Installed 






3 Mbyte 


Installed 






Installed 




3 Mbyte 


Installed 


Installed 




Installed 




4 Mbyte 


Installed 






Installed 


Installed 


5 Mbyte 



1.8.03 RAM 

Resident RAM = 1 Mbyte 
Expansion RAM (Options) 



Memory Board (OLRA-2) 
One Mbyte 

Memory Board (OLRA) 
Two Mbyte 
NOTES: 

Total installed RAM cannot exceed 5 Mbyte 

Two optional memory boards can be installed at the same time in the OL810. 
■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 25 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



1.9 CONSUMABLES 

1.9.01 Image Drum Cartridge Kit 

Includes: 

Image Drum Cartridge 

Ozone Filter 

1.9.02 Toner Cartridge Kit 

Includes: 
Toner Cartridge 
Fuser Cleaner Pad 
LED Lens Cleaning Pad 

1.9.03 Toxicity 

No carcinogens are contained 



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Page: 26 



OKIDATA 



Service Guide OL810 

Chapter 1 Specifications 



1.10 OPTIONS 

1.10.01 Memory Boards (RAM Expansion) 

Memory Board (OLRA-2) 
One Mbyte 

Memory Board (OLRA) 
Two Mbyte 

NOTES: 

The OL810 LED page printer contains 1 megabyte of RAM, standard. 

Two optional memory boards can be installed at the same time in the OL810. 



Standard 
Memory 
(1 Mbyte) 


Optional 
OLRA-2 
(1 Mbyte) 


Optional 
OLRA-2 
(1 Mbyte) 


Optional 
OLRA 
(2 Mbyte) 


Optional 
OLRA 
(2 Mbyte) 


Total Memory 


Installed 










1 Mbyte 


Installed 


Installed 








2 Mbyte 


Installed 


Installed 


Installed 






3 Mbyte 


Installed 






Installed 




3 Mbyte 


Installed 


Installed 




Installed 




4 Mbyte 


Installed 






Installed 


Installed 


5 Mbyte 



1.10.02 Font ROM Card 

NOTE: 

Two cards can be installed at the same time 

Tax 

Prestige Elite 

Letter Gothic 



1.10.03 Paper Trays 

Letter (200 sheet capacity) 
Legal (200 sheet capacity) 
Envelope (15 capacity) 
Executive (200 sheet capacity) 
A4 (200 sheet capacity) 
Universal (200 sheet capacity) 

1.10.04 Serial Interface Board 

RS-232C Serial 

Provides serial communication capability at speeds up to 1 9.2 Kbits per second. 



1.10.05 Second Paper Feed Mechanism 

The second paper feed mechanism allows paper feeding from two paper trays. A second paper tray must 
be purchased for use with the second paper feed mechanism. 



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Page: 27 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 1 Specifications 



1.11 RELIABILITY 

1.11.01 Mean Page Between Failure (MPBF) 

Approximately 32,000 pages 

1.11.02 Mean Time To Repair (MTTR) 

Approximately 20 minutes 

1.11.03 Printer Life 

Approximately 300,000 pages 

1.11.04 LED Printhead Life 

Built to exceed printer life 

1.11.05 Fuser Life 

Approximately 180,000 pages 

1.11.06 Printer Duty Cycle 

Approximately 12,000 pages per month @ 5% print density 

1.11.07 Toner Life 

Approximately 2,500 pages at approximately 5% density 

1.11.08 Image Drum Life 

Approximately 15,000 pages 

1.11.09 Warranty 

One year, parts and labor (entire printer) 
Five years, LED printhead 

1.11.10 Service 

Authorized Okidata Service Centers 



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Page: 28 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



2.1 PRODUCT OVERVIEW 

2.1.01 General Information 

This section describes the operation of the printer. The information is divided into these four sections. 
Control Unit (CU) 
Printer Unit (PU) 
Mechanical Operation 
Sensors and Switches 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 29 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 2 Principles of Operation 



2.1 .02 Control Unit (CU) 

The control unit regulates the reception of data from the host system interface. After receiving data and 
commands from the host system, the CU generates bit image data. The CU transfers data and commands 
to the Printer Unit (PU). 

The following are the principal hardware components of the CU. 

Main Control Board 
Serial Interface Board (Option) 
Memory Boards (Options) 
Font Cards (Options) 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 30 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



Block Diagram: Control Unit 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 31 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 2 Principles of Operation 



Main Control Board (OLMA) 

The main control board consists of a 25 Mhz oscillator, a Motorola 68000 Microprocessor (CPU), two 1 
Mbyte Font ROMs, a 1 Mbyte Program ROM, 1 Mbyte of RAM, an EEPROM, and a Gate Array. The main 
control board is connected to the host system through a Centronics parallel interface or an optional 
RS-232C serial interface. The main control board is connected to the printer unit via CN7 on the main 
control board and J7 on the PUs engine controller board. 

The Gate Array is housed in a LSI. This component can read/write/ process data simultaneously in 
accordance with the 25Mhz clock pulse. Data is read from and written to the EEPROM via the gate array. 
The gate array also provides the dynamic RAM refresh. The gate array sends a 12.5 Mhz clock signal to 
the microprocessor. This clock pulse governs the processing and executing of commands by the CPU. 
The EEPROM, located on the main control board, stores the default interface protocol information. The 
gate array controls reading data from, and writing data to, the dynamic RAM. 

There are six major functions of the main control board. 

Reception Control 

Command Analysis Processing 

Font Processing 

Raster Buffer Read Operation 

Engine Interface (l/F) Processing 

Operation Panel Control 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Page: 32 



Reception Control 

l-PRIME: Enable/Disable of the parallel interface port can be specified through the menu. 

The RS-232C serial interface baud rate, parity, and busy control protocol are selected through the menu. 

■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 33 

Service Guide OL810 

Chapter 2 Principles of Operation 



Command Analysis Processing 

The printer has two emulation modes. 

IBM Proprinter III XL: IBM 

Laser Jet Series III: Hewlett Packard 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 34 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Font Processing 

Bit mapped fonts and the scalable fonts are available for Hewlett Packard LaserJet Series III emulation. 
Only the bit mapped fonts are available for IBM Proprinter III XL. 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 35 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Raster Buffer Read Operation 

Bit images written in the raster buffer are converted to serial data. The contents of the registers are 
transferred to the engine controller board. 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 36 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Engine Interface (l/F) 

The engine interface provides a control signal which governs the operation of the engine controller board 
when printing is requested. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 37 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



Memory Boards OLRA and OLRA-2 (Options) 

The printer contains 1 megabyte of RAM, standard. Two optional memory boards are available. Installing 
these boards increases the amount of available RAM. The OLRA memory board increases available RAM 
by 2 megabytes. The OLRA-2 memory board increases available RAM by 1 megabyte. Two optional 
memory boards can be installed at the same time in the printer. 

The CPU detects the extended RAM board by sending the MEMEXIST signal. The RAMs capacity is 
identified during the power-on sequence. The end user can verify RAM capacity by printing the menu. 

NOTES: 

Total installed RAM cannot exceed 5 Mbyte 

Two optional memory boards can be installed at the same time in the printer. 



Standard 
Memory 
(1 Mbyte) 


Optional 
OLRA-2 
(1 Mbyte) 


Optional 
OLRA-2 
(1 Mbyte) 


Optional 
OLRA 
(2 Mbyte) 


Optional 
OLRA 
(2 Mbyte) 


Total Memory 


Installed 










1 Mbyte 


Installed 


Installed 








2 Mbyte 


Installed 


Installed 


Installed 






3 Mbyte 


Installed 






Installed 




3 Mbyte 


Installed 


Installed 




Installed 




4 Mbyte 


Installed 






Installed 


Installed 


5 Mbyte 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 38 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Font Card (Option) 

Two optional font cards (for additional bit mapped/scalable fonts) can be installed at the same time. The 
printer must be OFF-LINE (the READY lamp is off) before the card can be inserted or removed. If the font 
card is inserted or removed while the printer is ON-LINE (the READY lamp is on), a CARD REMOVED 
ON-LINE error message will appear on the operator panel display. 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 39 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



2.1.03 Printer Unit (PU) 

The principal hardware components of the printer unit are listed below. 

Engine Controller Board 

Power Supply Unit 

Fuser Unit 

Main Motor 

LED Array 

Registration Motor 

DC Fan 

Operation Panel 

Second Paper Tray Mechanism (Option) 

Image Drum Cartridge 

Sensors and Switches 

Toner End Sensor 

Inlet Sensor 

Outlet Sensor 

Paper Out Sensor 

Paper Tray Identification Switch 

Cover Open Switch 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 40 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Block Diagram: Printer Unit 



Operator l 

pintH/F 
(toCU) 



Command 

Iff 

(ToCU) 




VidtoW 
(ToCU) 



Exttrntl 
VldaotT 



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Page: 41 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Engine Board Controller (LLAT) 

Contents 

The PUs engine controller board contains the following items. 

Eight Bit Microprocessor 

128 Kbyte of internal RAM 

32 I/O ports 

5 interrupt lines 

One Kbyte EEPROM 

120 Pin LSI 

36 I/O ports 

Two Drivers 

IC5 

IC8 

Toner End Sensor 

Inlet Sensor 

Outlet Sensor 

Comparator IC7 

Latch IC4 

Four Driver Transistors T21 -T24 

Two Oscillators OSC1/OSC2. 

Operations 

The engine controller board enables the fuser lamp. 

It activates the preliminary print circuits. 

Upon the completion of the preliminary print functions, the engine controller board enables the LED array 
in conformance with the signals and commands received from the main control board. 

The LED array illuminates, leaving a latent image on the photosensitive drum. 

The engine controller board also controls paper feed, paper transfer, and electrostatic printing processes. 



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Page: 42 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



EEPROM Operation 

The 128 Byte Electrically Erasable PROM (EEPROM) is loaded with the data listed below. 

Total number of sheets printed after installation 

Modified page count 

Total number of sheets printed with the current drum 

Total number of sheets printed with the current fuser 

Setting of time required from the completion of printing to Quiet Mode 

Feed time needed to feed the paper to a printable position 

Vertical registration 

LED array drive time 

The data stored in the EEPROM can be accessed by using SW1 on the engine controller board to place 
the printer in the Maintenance Mode (See Section 3 of the Service Handbook). 

The count of the total number of sheets printed with the drum currently in use should be taken as a rough 
measure of the useful life of the drum. The drum counter can be set to zero after the drum is replaced by 
holding down the RESET button and turning the power switch ON. 

■ 

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Page: 43 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



Power Supply Unit 

The power supply unit generates the voltages listed below from the AC input voltage. 



Voltage 


Purpose 


+ 5 vdc 


Logic Levels 


+ 1 2 vdc 


Interface Line Voltage 


- 12 vdc 


Interface Line Voltage 


+ 38 vdc 


Motor/Fan Drive Voltage: High Voltage Source 


+ 5 Kvdc 


Transfer Charge Voltage 


- 6 Kvdc 


Drum Charge Voltage 


- 700 vdc 


Charge Grid Bias Voltage 


- 550, - 400 vdc 


Developer Bias Voltages 



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Page: 44 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



High Voltage / Bias Voltage Circuits 

The high voltage circuit supplies the following voltages. 

• The drum charge voltage (about - 6 Kvdc) to the charge wire. 

• The transfer charge voltage (about + 5 Kvdc) to the transfer wire. 

These two charge voltages are generated by a high voltage power supply unit, which is attached to the 
power supply unit. 



The bias voltage circuit provides the grid voltage (about - 700 vdc) and developer bias voltages (about 
550vdcand-400vdc). 



Switching 
circuit 



Rectifying 
circuit 



ACIN 



ty-S* 



ak 



Switching 

control 

Circuit 

c 



Error 

detection 

circuit 



Regulating 
Circuit 



□ Circuit 



Smoothing 
Circuit 



Hiah voltage* 



* 5 kv generating 
circuity 

-5 kV generating 
circuit 



AC t S kV 



■6kV 



♦- + SV 

' — *- + 12V 
-»--12V 



Cover / 

open 

switch 



rr 



ALM 



HEAT 






CVOPN 
.TR 



.CH 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 45 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 2 Principles of Operation 



Fuser Unit 

The fuser unit temperature is maintained at approximately 180 degrees Celsius by a thermistor, a 
comparator, an LSI, and the CPU. A thermal fuse, located within the fuser unit, prevents abnormal 
temperature rises should the temperature control circuits fail. 

NOTE: 

The CPU checks for an open circuit in the thermistor at POWER-ON, setting a fuser alarm if this error is 
detected. 

The CPU also sets a fuser alarm if the proper temperature is not attained within a specified period of time 
after power-on. 

Upon detecting a fuser alarm, the CPU will halt (after printing the current page). 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
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Page: 46 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



Main Motor (Drum Motor) 

The main motor is driven by the motor drivers IC5 and IC8 (M54646). The main motor is a two-phase dc 
motor, driven by the DM-PH0,1 signals supplied by the LSI. T1 and T2 provide the internal switching 
frequency needed for proper phasing. 

Printer control 

(LLAT KB) 



CVQPN-N 



LSI 



M 54646 



RM1 

HMD 
RM2 



DM-PHi 

- DM-PHO - 

- OM-ON-N 




Y^ FintttndlG 
i-J . .tbvmttt* mv,.. 



DM-PHI 
DM-PHO 
DM-ON-N 




_r~u — i 



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Page: 47 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



LED Array 

Data on the 2,560 LEDS is loaded into the shift register by the head clock signal (HD CLK). The data is 
loaded into the latch circuit by the load head signal (HD LD). The on/off states of the LEDs are controlled 
by the signals (STB1 -STB4). The logic gates in the latch circuits determine the on\off time of the LEDs. 
The LEDs on/off time is a function of the HD CLK, HD LD, HD DATA signals. 



Printer <onuol • 
UATKft 

HO CLK (> 
HDDATA(j> 



HDLO (J> 
i 

STB1 (> 
STB2 (> 



LED head 




5TB3 (> 
STB4 Q 



Wf< h n Tf-tf ff-ff 

r Tr I 1H1CCA 



4 



tmseo 



>it1 



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Page: 48 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Registration Motor 

The registration motor is a four-phase dc motor. It is driven clockwise (hopping), then counterclockwise 
(paper feed) by transistors TR-21 ,22,23,24. 



D3 



LSI 
AM 3 



KM I 
RM2 

RMQ 

TREQ 



+3av-taF 



AM-PK3 



-rm-phi 

RM-PK2 
-RM-fHO 

~RM ON-? 



RM-PHO 

RM - PHI 

AM -PHI 

RM-PH3 
RM ON-P 




IC9: ... 
TT520 



tVOPN-N 

M 



■K 



R5B8 



R524 ,01 ■ 



i 



Til 



C12 




ftllX. 



R525. 

T22 ' 

R526 . C 13 Yi 

vw-kz: — 4r 

T23 I h 

R527. 

vw-kz 

T2<* ' r 



R5»9 
R59C 



+ 3SV 



i_i i_r-_r 



Registration Motor 



~tj© 



i 



n_-_r 



i_r 



nnnnnnn -jinnnnnnnn 



cw 



ccw 



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Page: 49 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



DC Fan 

The +38vdc fan is controlled by the FAN ON-P signal from the LSI. 

The fuser and the fan are NOT enabled when the cover is open. 

If the fan fails to run, the fuser will turn off and ERROR PU FAN MOTOR (Fan Alarm) is displayed on the 
operator panel. Printing will be disabled. 

In accordance with the TIME TO QUIET setting of the Level 2 Menu, the fuser will maintain the proper 
fusing temperature for 1 or 8 minutes after the last page has been printed. 

If printing is not requested within the selected time frame, the fuser will turn OFF and the fan speed will be 
reduced 50%. 

Selecting DISABLE allows the fuser to maintain the proper fusing temperature continuously. 

■ 

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Page: 50 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Operation Panel 

The following components make up the operation panel. 

4-bit MPU 

LCD Control Driver 

LCD Display 

1 6 characters x two lines 

Operation Panel Sheet 

LEDs 

Operation Buttons 

The operation panel is connected to the main control board via the engine connection board and engine 
controller board. The operation panel is controlled by the main control board by the operation panel 
interface (l/F) signal. 

The LCD control driver converts 4-bit character codes received from the main control boards CPU into 
8-bit character codes. The control driver then retrieves the character pattern data (font) associated with 
the 8-bit character codes from the internal character generator (located on the operation panel board) for 
display on the LCD. 

■ 

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Page: 51 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 2 Principles of Operation 



Second Paper Tray Mechanism 

The optional second paper tray mechanism is controlled by the second tray driver board (LLFC). This 
board is attached to the left side of the second paper tray mechanism. The registration motor and paper 
tray detection sensors are mounted on this board. 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 52 



Service Guide OL810 

Chapter 2 Principles of Operation 



2.1.04 Sensors and Switches 

Inlet Sensor (Photosensor) 
Outlet Sensor (Photosensor) 
Paper Tray Identification Switches 
Paper End Sensor (Photosensor) 
Cover Open Switch 



/iPD91336 



Printer control 
LLATPCB 

TONER SENSE 



PS-IH 



$ Toner end senior 
(Photosensor) 




.J i 
"i i 



Inlet sensor 
(Photosensor) 



PS-OUT 




+ sv 



Outlet tensor 
(Photosensor) 



CASSETTE-SI, tt,S3 



;r.i.J 



Paper tray 

identification 

switch 



CASSETTE-PS 




^ Paper end tensor 
(Photosensor) 



! 

» 

-J 



Sensor Functions 
Power-On 



The inlet and outlet sensors are checked for their on and off states at power on time. 
Inlet sensor on: PAPER FEED JAM ERROR (Paper supply jam) 
Outlet sensor on: PAPER JAM ERROR (Paper exit jam) 



The thermistor sensor circuit detects if the temperature of the fusing unit reaches the normal temperature 
within the specified time. If it does not reach the normal temperature within the specified time, the 
thermistor sensor turns OFF the fuser and generates an alarm. 

Hopping 

Whenever the inlet sensor fails to detect paper within a predetermined period of time after a feed 
command has been issued to the paper supply system (tray), the failure is counted. A hopping operation 
is then attempted up to three times, and if the paper still fails to feed properly, a paper feed jam error 
occurs. 

Feeding 

If the leading part of the paper does not reach the outlet sensor within a predetermined period of time after 
the start of feeding by the registration motor, a paper jam error occurs. 

Form Length Error Detection 

Form length detection is not enabled for manually inserted paper or envelopes. Any form length, other 
than those specified in Section 1 of the Service Handbook, will generate a form length error, causing an 
error message to be displayed on the operator panel. To detect the form length, the processor times the 
interval between the activation and deactivation of the inlet sensor. The inlet sensor is deactivated after 
the registration motor starts in the forward direction. 

Outlet Jam Detection 

Since paper is fed through the printer at a fixed speed, the outlet sensor must remain on for a 
predetermined time. If the outlet sensor remains on longer, the controller assumes that an exit jam has 
occurred and an alarm is generated. 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 53 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



2.2 PRODUCT OPERATION 

2.2.01 Electrostatic Printing 

Functional Description 

A - 700 vdc charge is placed on the photoconductive drum by supplying -6 Kvdc from the power supply to 
the charge wire. The printer turns on the LED array in conformance with the data received from the CUs 
main control board. Once the charged drum is exposed to this light, an electrostatic image is formed on 
the drum surface. This latent image is developed with toner. The toner image is then transferred and fused 
to the paper. 

The electrostatic technology used in this printer is similar to that embodied in copying machines. The 
technology uses the processes described in the following sections. 

Diagram: Electrostatic Printing 



<D Charging 



r 



PhotDcOnductinr 



Tht phAtwonductivc mptviUI 
ii chtrgtd uniformly. 



6 Cleaning 



\ r 

fWotMondurtk* 
mtttrlil 



*tMu*l Inner on tht photo 
eoftduetiw* mjMrtttitrtm&vwi 



© Exposuf* 
tight light 

IM1 

I- -__*- — - — „_- -J 



Tht phokKondiKtwt nwterltl h 
lir*Jl*tW with LED light to lorn 
j i»Uru im»3». 



3 Developing 



1 






Jtontt 








tewmmufl 







The li wnt imtgt « d»»to|j»d Of 
M. 




Tht tcntr trntg* ii trtniltrFtd to 



© Fusing 



Hut 



<Z> / 



Tontr 



_] 



o 



Prtuure 
Tht liaiuftritd prnag* is Juiec 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 54 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



Diagram: Printing Process 



Here is an illustration of the printing process. The white arrows show the rotation of the image drum. The 
black arrows show the paper feed path. 



Jf m damn) 




Ton*rr»ty4l* 



C'OclO.' 



H. 



[ "^««W 



Fow»r 
iupply 
(BlM 



Tanir 
cartridge 



supply 
folltr 



fttgliplliar 
ROHtf 





trty 


^T 






H ?r° 








(tiding 
DicKtinnaf 
rotation of tfM 
imigidrwn 



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Page: 55 



OKIDATA 



Service Guide OL810 

Chapter 2 Principles of Operation 



Processes 

Hopping and Feeding 

Hopping and feeding are accomplished by the registration motor, hopping roller, and registration rollers. 

Turning the registration motor in the clockwise direction drives the hopping roller. 

Turning the registration motor in the counter-clockwise direction drives the registration rollers. 

Hopping 

Hopping loads paper from the tray 

The registration motor turns the hopping roller to advance the paper until the inlet sensor is enabled. 

After the paper has enabled the inlet sensor, the hopping roller continues to advance the paper a 
predetermined distance. The paper contacts the registration roller. The registration roller, along with the 
free-spinning upper metal pressure roller, removes paper skew. 

Feeding 

At the end of the hopping process, the registration motor reverses direction and the registration rollers 
transport the paper through the printer. 



Planetary gear 



Hopping roller 



Registration Roller 




Plp«f 



Charging 

The surface of the photoconductive drum is uniformly charged. 

-6 Kvdc is applied to the charge wire. This causes negative ions to be generated in the vicinity of the 
charge wire (corona discharge). The negative ions are discharged to the grid plate and the image drum 
surface. Since the drum surface is not conductive (in the dark), the negative charge (approximately -700 
vdc) remains on the drum. To ensure that the drum surface is not charged with more than -700 vdc, a 
varistor is connected between the grid and ground. If the grid voltage exceeds -700 vdc, the varistor 
shunts this excess voltage to ground. 



Exposure 

The charged photoconductive drum is exposed to light, forming an electrostatic image associated with the 
print image on the drum. 

Light emitted from the LED array strikes the image drum surface, which is charged with negative ions. The 
areas of the drum struck by light become conductive. This causes the surface potential in these areas to 
drop (from -700 vdc to approximately -100 vdc). This forms a latent image on the image drum. 

Developing 

Negatively charged toner is attracted to the latent image, making the image visible. 

The toner supply roller is constructed of a porous material which absorbs toner. The toner supply roller 
contains a -550 vdc bias charge and the development roller contains a -400 vdc bias charge. Since the 
development roller charge is more positive than the toner supply roller charge, toner is transferred from 
the toner supply roller to the development roller. 

The toner on the development roller is leveled by the doctor blade. This forms a thin coat of toner on the 
development roller surface. 

Since the areas of the drum exposed to light are charged more positively (-100 vdc) than the toner (-400 
vdc), toner is attracted to the exposed areas, making the latent image visible. 

Transfer 

The toner is attracted to positive charged paper. 

As paper passes under the image drum surface, a positive charge (+5 Kvdc), is applied to the transfer 
charge wire. This causes the paper to acquire a positive charge through corona discharge. Since the 
papers charge (+5 Kvdc) is more positive than the toner charge (-100 vdc), the toner is transferred to the 
paper. 

Cleaning 

Residual toner is removed from the image drum surface. 

Upon completion of transfer, residual toner on the image drum is scraped off by the cleaning blade and 
collected in the toner recovery unit. 

Fusing 

The toner image is fused to the paper using heat and pressure. 

The toner image is fused on the paper by placing it between the heat roller and the pressure (back-up) 
roller. The heat roller is teflon coated and contains a 400 watt quartz lamp. A thermistor regulates the heat 
roller temperature at a predetermined temperature (about 1 50° C). A thermostat removes the supply 
voltage to the heat roller in the event of an abnormal temperature rise. The pressure (back-up) roller 
springs produce a pressure of 6.5 pounds on the paper. 

Paper Ejection 



Paper is transported from the fuser unit by the pressure (back-up) roller. If the face-up stacker is closed, 
paper is routed to the top of the printer for face-down delivery. 

Toner Recycling 

Unused toner collected during cleaning is returned to the developer unit. 

Toner in the toner recovery tank is moved to the toner cartridge for reuse. 

■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 56 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 3 Maintenance 



3.1 MAINTENANCE 

3.1.01 General Information 

This section lists the parts replacement procedures, printer adjustments, and procedures for cleaning and 
lubrication. 

Disassembly should not be performed unless absolutely necessary. NEVER perform disassembly on a 
malfunctioning printer until you have followed the failure analysis procedures in 

Section Four of this Service Handbook. 

Follow the procedures listed in Adjustments and Service Settings. Counters may have to be reset and 
adjustments may be required when either consumables or parts are replaced. Failure to perform these 
procedures could result in unnecessary service calls. 

The printer is a xerographic device. Cleaning procedures must be performed correctly if high print quality 
is to be achieved. 

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Page: 57 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 3 Maintenance 



3.1.02 Maintenance Items 

The following tools are required to service the printer. 
#2 Phillips Screwdriver (with magnetic tip) 
Straight-slot Screwdriver 
Digital Multimeter 

Needle Nose Pliers (4 Inch) 

■ 

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Page: 58 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.1.03 Maintenance Precautions 

1 . Do not disassemble the printer if it is operating normally. 

2. Before starting disassembly and assembly, always turn the AC power switch OFF and pull out the AC 
plug. 

3. Detach the interface cable, if installed. 

4. Do not remove parts unnecessarily: try to keep disassembly to a minimum. 

5. Use the recommended maintenance tools. 

6. When disassembling, follow the listed sequence. Failure to follow the correct sequence may result in 
damaged parts. 

7. Since screws, collars and other small parts are easily lost, they should be temporarily attached to the 
original positions. 

8. When handling circuit boards use extreme care. ICs such as microprocessors, ROM and RAM can be 
destroyed by static electricity. 

9. Do not place printed circuit boards directly on conductive surfaces. 

10. Follow the recommended procedures when replacing assemblies and units. 

1 1 . After replacing the drum cartridge, clear the drum counter by following the Drum Counter Reset 
Procedure in Section 3.3 of this Service Handbook. 

1 2. After replacing the fusing unit, clear the fusing unit counter by following the Fuser Counter Reset 
Procedure in Section 3.3 of this Service Handbook. 

13. After replacing the LED head, check to see if the LED Head Drive Time rating needs to be set. Use the 
Setting the LED Head Drive Time Procedure in Section 3.3 of this Service Handbook. 

■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 59 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.2 DISASSEMBLY/ASSEMBLY PROCEDURES 

General Information 

This section contains the printer disassembly procedures. Only the removal procedures are explained 
here. Reverse the procedure for the installation. 

At the bottom of each procedure is a listing of Okidata part numbers, item descriptions, and 
cross-references to Appendix B. Items included in the Recommended Spare Parts List are marked RSPL. 
N/A will appear where a part number is not available. 

We have listed disassembly procedures for major components of the printer. If you decide to 
perform disassembly during this training, we recommend that you perform only the disassembly 
procedures for RSPL items. All other procedures are provided to assist you in identifying parts. It is not 
likely that you will perform these procedures while servicing a printer. 

This section has a flowchart of the disassembly procedures. An index for the flowchart is also provided. 

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Page: 60 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.2.01 Preliminary Items 

1 . Turn the power switch (1 ) OFF. 

2. Detach the AC power cord (2) from printer. 

3. Remove the paper tray (3). 

4. Detach the interface cable (4). 

5. Remove the font cards (5), if installed. 

6. Press the OPEN switch (6) and raise the stacker cover (7). 

7. Push the lock levers (8) toward the rear of the printer and open the LED holder (9). 

8. Lift and remove the image drum cartridge (10). To protect the image drum cartridge, place it back in the 
styrofoam shipping package. 

NOTES: 

The image drum counter should be reset when a new image drum is installed. Refer to Section 3.3 of this 
Service Handbook for details. 

Refer to Appendix B for paper tray and font card part numbers. 

The image drum and the toner cartridge are available in the consumables kits listed below. 

P/N 56609701 Cord: AC (120 V) RSPL B.2.02 

P/N 56624301 Cord: AC (220 V) Option B.2.02 and 12 

P/N 56624501 Cord: AC 240 V (OL Series) UK Option B.2.02 and 12 

P/N 56106601 Image Drum Cartridge Consumable B.2.04 

Includes an Image Drum and Ozone Filter 

P/N 52104201 Toner Cartridge Kit Consumable B.2.16 

Includes a Toner Cartridge, a Fuser Cleaner Pad, and an LED Lens Cleaner Pad 





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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 61 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.2.02 Upper Cover 

1 . Perform this procedure: 3.2.01 . 

2. Grasp the operator panel assembly (1) at its bottom and detach it. 

3. Pull on the locking collar and then detach the connecting cable (2) from connector J1 (3) of the operator 
panel board (4). 

4. Press the OPEN switch (5) and raise the stacker cover (6). 

5. Remove the access cover (7). 

6. Remove the two screws (8) and lift the front side of the upper cover (9). 

7. Pivot the upper cover towards the rear and remove the upper cover. 

8. Remove the stacker cover and two reset springs (10). 

9. Remove the face-up stacker assembly (11). 

10. The lower unit (12) contains the boards, shields, paper feed mechanism, transfer charger assembly 
and rollers. 

Installation 

1 1 . Open the stacker cover. 

12. Align the square slots of the upper cover with the claws of the lower cover. The claws are 
located on the back of the lower cover, at the left and right sides. 

13. Lower the upper cover into position. 

CAUTION: 

When assembling the operator panel board, you must install the connecting cable with the blue strip to the 
left. 

If the cover is not installed properly, paper jams will result. 

P/N N/A Access Cover B.2.02 

P/N 50066601 Stacker: Face-up Assembly RSPL B.2.02 

P/N 50213508 Panel: Operator Assembly RSPL B.2.02 



P/N 50213602 Unit: Lower RSPL B.2.02 
P/N 50918001 Reset Spring B.2.02 
P/N 53338203 Cover: Upper w/logo (OL810) RSPL B.2.02 
P/N N/A Stacker Cover Assembly B.2.02 
P/N 52046506 Logo: Plate OL810 RSPL B.2.02 
P/N 52054004 Touch Sheet: Op Panel (OL810) RSPL B.2.02 
6 




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Page: 62 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



3.2.03 Stacker Open Switch Assembly 

1 . Perform these procedures: 3.2.01 and 3.2.02. 

2. Turn the upper cover over and detach the spring (1). 

3. Work the pins of the shaft (2) from the arms of the upper cover and remove the shaft. 

4. Release the two claws and remove the metal plate and cover open switch (3). 
NOTE: 

The claws and metal plate are not shown. 
P/N 50917901 Spring B.2.02 
P/N 51111301 Shaft B.2.02 
P/N 53527401 Button B.2.02 




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Page: 63 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.2.04 LED Head 

1 . Perform this procedure: 3.2.01 . 

2. Push the two blue lock levers (1 ) toward the rear of the printer and open the LED holder (2). 

3. Squeeze the LED head (3) and the LED holder together. This eases the tension on the springs (4). 

4. Use a screwdriver to remove the two clamps (5) on either side of the LED head. 

5. Remove the LED head. 

6. Remove the springs. 
NOTES: 

Avoid touching the LED array when squeezing the LED head. 

Clean the LED array with the LED lens cleaner provided in the toner cartridge kit. Refer to Section 
3.4 of this Service Handbook. 

LED Head Replacement 

When you replace one LED head with another, the LED head drive time may need to be reset. Refer to 
Section 3.3 of this Service Handbook for further information. 

CAUTION: 

The OL810 printhead should not be used in non-OST Okidata printers. 

The barcoded intensity rating label on the upper left side of the LED head will tell you which LED head you 
are working with. A designation of 300T supports OST A designation of 300S does not support OST 

When replacing the OL810 LED head, you must install an LED head with OST capability. If you install a 
standard (non-OST) LED head, the printer will not function properly. A "mirror image" of the desired data 
will print. The printer will print "mirror images", regardless of the Smoothing Setting in the Level 2 menu. 

P/N 50914101 Spring: Bias (LED Head) RSPL B.2.06 

P/N 50914301 Spring: Clamp (LED) RSPL B.2.06 

P/N 55622301 Unit: LED Head (300 dpi OST) RSPL B.2.06 

P/N 52104201 Toner Cartridge Kit Consumable B.2.16 

Includes a Toner Cartridge, a Fuser Cleaner Pad, and an LED Lens Cleaner Pad 




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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 64 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



3.2.05 RS232 Interface Board (OLSA, Option) 

1 . Perform these procedures: 3.2.01 and 3.2.02. 

2. Remove the two mounting screws (1). 

3. Unlock the interface board (2) from shield plate B (3). 

4. Disconnect the connector (4) as you lift and remove the interface board. 
P/N 51008201 Plate: Shield B RSPL B.2.09 

P/N 55067801 PCB: OLSA Serial l/F Option B.2.09 and 12 
P/N 70021201 Serial Interface Kit Option B.2.12 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.06 Memory Boards (OLRA-2 or OLRA, Options) 

NOTE: 

Two types of memory boards may be installed at the same time in the printer. Use the same procedure for 
each board. 

Refer to Section 3.3 of this Service Handbook or the Printer Handbook for changing menu settings when 
the memory boards are installed. 



Standard 
Memory (1 
Mbyte) 


Optional 
OLRA-2 (1 
Mbyte) 


Optional 
OLRA-2 (1 
Mbyte) 


Optional 
OLRA (2 
Mbyte) 


Optional 
OLRA (2 
Mbyte) 


Total Memory 


Installed 










1 Mbyte 


Installed 


Installed 








2 Mbyte 


Installed 


Installed 


Installed 






3 Mbyte 


Installed 






Installed 




3 Mbyte 


Installed 


Installed 




Installed 




4 Mbyte 


Installed 






Installed 


Installed 


5 Mbyte 



Installed 1 Mbyte Installed 2 Mbyte Installed 3 Mbyte Installed 3 Mbyte Installed 4 Mbyte Installed 5 Mbyte 

1 . Perform these procedures: 3.2.01 and 3.2.02. 

2. Press the OPEN switch and raise the stacker cover. 

3. Remove the access cover. 

4. Unlock the two circuit board supports (1 ). 

5. Disengage the connector (2) as you remove the memory board (3). 
P/N 55067901 PCB: OLRA Option B.2.09 and 12 2 Megabyte RAM 
P/N 55067902 PCB: OLRA-2 Option B.2.09 and 12 1 Megabyte RAM 
P/N 70021001 1 MB Memory Board Kit Option B.2.12 

P/N 70021 1012 MB Memory Board Kit Option B.2.1 2 




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3.2.07 Main Controller Board (OLMA) and Second Font Card Board (OLCA) 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, and 3.2.06. 

2. Remove the four screws (1). 

3. Remove shield B (2). 

4. Remove the four screws (3). 

5. Disconnect the connector (4) as you remove the main controller circuit board (5). 

6. Remove the second font card circuit board (6). 

7. Remove the two screws (7). 

8. Remove the bracket (8) from the second font card circuit board. 
P/N 51008401 Guide: Card (C) RSPL B.2.09 

P/N 51708201 Bracket: Font Card Board RSPL B.2.09 

P/N 55067601 PCB: OLMA Main RSPL B.2.09 

P/N 55067701 PCB: OLCA 2nd Font Card RSPL B.2.09 

P/N 55923901 IC: CU EEPROM RSPL B.2.09 MSM1 681 1 RS-NW 




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3.2.08 Engine Controller Board (LLAT) 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, and 3.2.07. 

2. Disconnect the cables from the connectors J1 - DC fan (1 ), J2 - fuser thermistor (2), and J5 - paper 
supply unit (3). 

3. Open the LED holder to allow access to the engine board mounting screw (4) and remove the mounting 
screw. 

4. Close the LED holder and raise the upper unit. 

5. Remove the three remaining mounting screws (5). 

6. Lift the engine controller board (6) to disconnect it from the interconnect board (7). 

CAUTION: 

Be careful not to lose the plastic spacers (8) located between the shield frame and the engine controller 
board. When installing the engine controller board, be sure that the spacers are in place or the engine 
controller board will short against the shield frame. 7. On the engine controller board, press the pawls (9) 
to unlock and remove the print board cover (10). 

Board Replacement 

8. Remove EEPROM (Q2) (11). The program ROM is masked to the CPU. 

9. Install the EEPROM and ROM on the new board. 
Board Installation 

1 0. Route the thermistor cable to J2 so it does not obstruct the movement of the outlet sensor. 

1 1 . Connect the paper supply unit cable to the engine controller circuit board via the groove in the shield 
plate. 

P/N 50515801 Spacer: Board with 5 mm screw RSPL B.2.09 

P/N 50515808 Spacer: Board with 18 mm screw RSPL B.2.09 

P/N 53528401 Board Cover B.2.09 

P/N 55067502 PCB: LLAT-2 Eng Controller RSPL B.2.09 

P/N 55938201 IC: Eng EEPROM BR93LC46A RSPL B.2.09 



5 1 




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3.2.09 Main Motor 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, and 3.2.08. 

2. Remove the three mounting screws (1). 

3. Remove shield plate A (2), which has shield plate C (3) attached. 

4. Remove the screw (4). 

5. Remove the shield plate C. 

6. Remove the interconnect board (5). (Only the location of the board is shown) 

7. Remove the two high voltage wires from the motor cover. (Not shown) 

8. Working from the bottom of the printer, remove the motor cover (6) by releasing the two black claws (7). 

9. Remove the motor cover. 

10. Shift the main motor assembly (8) to the left and detach it from the posts of the lower unit . 

1 1 . Remove the main motor assembly. 

12. Remove the two screws (9). 

13. Remove the main motor from the motor bracket (10). 

P/N 51 0081 02 Plate: Shield A Assembly (OL81 0) RSPL B.2.09 

P/N 51008301 Plate: Shield C RSPL B.2.09 

P/N 53329301 Motor Bracket B.2.08 

P/N 53528301 Motor Cover B.2.08 

P/N 55046001 PCB: LLID RSPL B.2.09 

P/N 56507701 Motor: Pulse (Main) RSPL B.2.08 




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OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



3.2.10 Idle Gear A, Idle Gear B, and Speed Reduction Gear 

1. Perform these procedures: 3.2.01, 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08 and 3.2.09. 

2. Remove the idle gear B (1 ). This is the white gear with large teeth. 

3. Remove the deceleration gear (2). This is the black double gear. 

4. Remove idle gear A (3). This is the white gear with small teeth. 
P/N 51218501 Gear: Idle "B" RSPL B.2.08 

P/N 51218701 Gear: Speed Reduction RSPL B.2.08 
P/N 51225701 Gear: Idle "A" RSPL B.2.08 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.11 DC Fan Assembly 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, and 3.2.08. 

2. Disconnect the cable (1). 

3. Remove the DC fan assembly (2). 

P/N 56508501 Fan: DC (Assembly) RSPL B.2.07 




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3.2.12 Power Supply Unit 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, 3.2.09, and 3.2.28. 

2. Disconnect the two high-voltage cables (1). 

NOTE: 

When installing, the cables are keyed for correct placement. The larger connector is to the front of the 
printer. 

3. Remove the screw (2) and detach the ground cable (3). [Only for 220/240 volt] 

4. Remove the three screws (4). 

5. Raise the upper unit . 

6. Use needle nose pliers to remove the left torsion spring (5). 

7. Lift the power supply unit (6) until it comes off the front guide (7) of the lower unit (8). 

8. Slide the power supply unit towards the front to detach it from the rear claws (9) for removal. 

9. Remove the AC cover (1 0) and AC contact plate (11). These items are located in the base 
frame. You must remove the power supply unit to access these items. However, you do not have to 
remove these items to remove the power supply unit. 

P/N 50918101 Torsion Spring (Left) B.2.04 

P/N 53057901 AC Contact Plate B.2.09 

P/N 53502301 AC Cover B.2.09 

P/N 56408708 Power Supply (220/240V) Option B.2.09 and 12 

P/N 56408710 Power Supply (120V) RSPL B.2.09 




10 



0¥ 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.13 Cover Open Microswitch Assembly 

1. Perform these procedures: 3.2.01, 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, and 3.2.09. 

2. Remove the screw (1). 

3. Detach the connector (2). 

4. Remove the microswitch assembly (3). 

N/A Microswitch Assembly (220-240V) Option RSPL B.2.09 and 12 
P/N 55050721 Microswitch Assembly (120V) RSPL B.2.09 




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3.2.14 Paper Eject Roller Assembly 

1 . Perform these procedures: 3.2.01 and 3.2.02. 

2. Place the face-up stacker assembly, located at the rear of the printer, down. 

3. Press the lock lever and raise the upper unit. 

4. Remove the mounting screw (1). 

5. Remove the ground cable at the power supply (Not shown - 220/240 volt only). 

6. Slightly lift the paper eject roller assembly (2) at its left end and slide the left end backward using the 
right end as a pivot. 

7. Remove the paper eject roller assembly. 

8. Separate the left (3) and right (4) springs and remove the bias rollers (5). 
N/A Paper Eject Roller Assembly B.2.10 

P/N 50918401 Bias Spring (Left) B.2.07 
P/N 50918501 Bias Spring (Right) B.2.07 
P/N 53334601 Bias Roller B.2.07 




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3.2.15 Paper Eject Sensor Lever and Rollers 

1 . Perform these procedures: 3.2.01 , 3.2.02, and 3.2.1 4. 

2. Turn the paper eject roller assembly over and remove the paper eject sensor lever (1). 

3. Remove the E-ring (2) and remove the paper eject idle gear (3) from the sheet guide (4). 

4. Remove the face-up paper eject roller shaft (5) with paper eject rollers (6). 

5. Remove the paper eject roller shaft (7) with face-up paper eject rollers (8). 

6. Detach the sheet separator (9). 

NOTE: 

The face-up paper eject roller shaft and the paper eject roller shaft are the same roller and have the same 
part number. 

P/N 50705301 E-RingB.2.10 

P/N 51 005201 Sheet Guide B.2.1 

P/N 51223201 Idle Gear "C" (OL810) RSPL B.2.1 1 

P/N 51111 401 Paper Eject Roller Shaft B.2.1 

P/N 51222801 Idle Gear (Paper Eject) B.2.1 

P/N 53334401 Paper Eject Roller B.2.1 

P/N 53334501 Paper Eject Roller (Face-up) B.2.1 

P/N 53528101 Sensor Lever (Paper Eject) B.2.1 

P/N 53528201 Sheet Separator B.2.10 




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3.2.16 Upper Unit 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, and 3.2.1 1 . 

2. Use needle nose pliers to remove the left torsion spring (1). 

3. Use needle nose pliers to remove the right torsion spring (2). 

4. Loosen the two mounting screws (3). 

5. Lift the upper unit (4). 

6. Slide the upper unit to the right and work it free of the right slot to remove it. 
CAUTION: 

Be careful not to drop the fulcrum block (5) and the idle gear (6) when removing the upper unit. 

P/N 50213706 Unit: Upper (120V) RSPL B.2.02 

P/N 50213707 Unit: Upper (220/240V) Option B.2.02 and 12 

P/N 50918101 Torsion Spring (Left) B.2.04 

P/N 50918201 Torsion Spring (Right) B.2.04 

P/N 51005001 Fulcrum Block B.2.04 

P/N 51218501 Gear: Idle "B" RSPL B.2.04 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.17 Cover Open Switch Actuator 

1 . Perform this procedure: 3.2.01 . 

2. Press the OPEN switch and raise the stacker cover. 

3. Push the lock lever back and raise the upper unit. 

4. Using a small screwdriver, push the actuator (1) from the bottom until it is released from the 
upper unit. 

5. Remove the actuator. 

P/N 50312501 Actuator B.2.04 




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OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



3.2.18 Paper Eject Sensor Levers B and C 

1 . Perform these procedures: 3.2.01 , 3.2.02, and 3.2.1 4. 

2. Use needle nose pliers to squeeze the claws (1) of the eject sensor "B" lever (2) to disengage it from 
the eject sensor "C" lever (3). 

3. Remove both levers. 

P/N 53527801 Paper Eject Sensor Lever B B.2.04 
P/N 53527901 Paper Eject Sensor Lever C B.2.04 




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3.2.19 Fusing Unit 

WARNING: 

Allow the printer to cool before servicing the fusing unit. 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, 3.2.1 1 , and 3.2.1 6. 

2. Remove fuser cleaner pad (1). 

3. Detach the cable (2) from the cable guide (3) of the upper unit. 

4. Pass the connector (4) through the slot in the upper unit and work the cable from the upper unit guides. 

5. Position the upper unit, its underside is facing you, with the fusing unit (5) at the top. 

6. Squeeze the fusing unit against the upper unit until the two lock plates protrude from their slots. (Not 
shown) 

7. Slide the fusing unit to the right until the lock plates disengage from the grooves of the upper unit. (Not 
shown) 

8. Remove the fusing unit, being careful not to lose the springs (6). 
Installation 

9. The four separator claws must move freely within their grooves or paper jams will result. 

10. Carefully position the fusing springs. At the grounding point, the latch plate will be positioned through 
the spring. 

1 1 . Be careful not to pinch the thermistor cable as you install the fusing unit. Be sure that the cable is 
placed in the notch. 

12. Make sure that the fuser temperature cable is behind the heat shield and out of the path of the fuser 
cleaner pad. 

13. After installing the fusing unit, reset the fusing unit counter. (Refer to Section 3.3 of this Service 
Handbook) 

P/N 50914601 Spring: Fusing Unit RSPL B.2.05 

P/N 53500901 Pad: Fuser Consumable B.2.04 and 16 In Toner Cartridge Kit 

P/N 55044901 Unit: Fusing (120V) RSPL B.2.05 



P/N 55044902 Unit: Fusing (220/240V) Option RSPL B.2.05 and 12 




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3.2.20 Metal Pressure Roller Assembly 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, 3.2.1 1 , and 3.2.1 6. 

2. Turn the upper unit over. 

3. Firmly push down on both ends of the metal pressure roller (1 ) and slide the roller until the brackets (2) 
clear the guides. Be careful not to lose the springs (3). 

4. Remove the brackets. 

5. Remove the knock pin (4). 

6. Remove the pressure roller gear (5). 

7. Remove the registration ground plate (6). 
P/N 50606208 Knock Pin B.2.05 

P/N 50914501 Pressure Spring B.2.05 

P/N 51222701 Pressure Roller Gear B.2.05 

P/N 51605802 Bearing B.2.05 

P/N 53334302 Pressure Roller B.2.05 

P/N 56729701 Ground Plate (Registration) B.2.05 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.21 Registration Sensor Lever and Toner Sensor Lever 

1 . Perform this procedure: 3.2.01 . 

2. Press the lock lever and raise the upper unit. 

3. Use needle nose pliers to squeeze the claws of the registration sensor flag (1) together and remove it 
from the registration sensor lever (2). 

4. Use a small straight-slot screwdriver and detach the nylon rivet (3) from the toner sensor lever (4). 
P/N 50606001 Rivet B.2.04 

P/N 53329601 Sensor Flag (Registration) B.2.04 
P/N 53503001 Sensor Lever (Registration) B.2.04 
P/N 53527701 Sensor Lever (Toner) B.2.04 




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3.2.22 Lock Lever Assembly 

1 . Perform this procedure: 3.2.01 . 

2. Press the lock lever and raise the upper unit. 

3. Detach the pressure springs (1) from the left (2) and right (3) lock levers. 

4. Detach the claw of the left lock lever from the lock lever shaft (4). 

5. Slide the left lock lever from the shaft until you can access the knock pin (5). 

6. Use needle nose pliers to remove the knock pin. 

7. Slide the lock lever shaft until you can remove the left lock lever. 

8. Use needle nose pliers to remove the knock pin. 

9. Remove the lock lever shaft and the right lock lever. 
P/N 50606216 Knock Pin B.2.05 

P/N 50917205 Spring: Image Drum Tray RSPL B.2.05 
P/N 51 1 1 0201 Lock Lever Shaft B.2.05 
P/N 53502601 Lock Lever (Left) B.2.05 
P/N 53502701 Lock Lever (Right) B.2.05 




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3.2.23 LED Head Holder 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, 3.2.1 1 , and 3.2.1 6. 

2. Press the release switches and open the LED head holder. 

3. Using a straight-slot screwdriver, work the left support plate (1) free, being careful not to lose the drum 
ground plate (2). 

4. Slide the LED head holder (3) until the shaft of the holder disengages from the point of the bracket of 
the upper frame (4). 

5. Work the extension free of the opening and remove the LED head housing. 
P/N 53058201 Ground Plate (Drum) B.2.04 

P/N 53058901 Support Plate (Left) B.2.04 

P/N 53329701 Upper Frame B.2.04 

P/N 55619601 LED Head Housing B.2.06 




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3.2.24 LED Holder Ground Plate 

1 . Perform this procedure: 3.2.01 . 

2. Press the release switches (1) and open the LED holder (2). 
CAUTION: 

DO NOT REMOVE THE RELEASE KNOBS AND SPRINGS (3). 

3. Use a small straight slot screwdriver to pry the ground plate (4) free. 

4. Remove the ground plate. 

P/N 50918301 Pressure Spring B.2.06 

P/N 51901301 Knob (Left) B.2.06 

P/N 51901401 Knob (Right) B.2.06 

P/N 53058401 Ground Plate (LED Head) B.2.06 




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3.2.25 Pressure Roller Assembly 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, 3.2.1 1 , and 3.2.1 6. 

2. Remove the two mounting screws (1) to detach the sheet guide (2) and fusing guide (3). 
NOTE: 

You may have to use a straight slot screwdriver to detach the guides. 

3. Remove the pressure roller (4). 

4. Remove the pressure roller springs (5). 

5. Remove the reinforcement plate (6). 

P/N 50079201 Roller: Pressure (Assembly) RSPL B.2.07 

P/N 50914801 Spring: Pressure Roller RSPL B.2.07 

P/N 51003601 Sheet Guide B.2.07 

P/N 51005101 Fusing Guide B.2.07 

P/N 53335601 Reinforcement Plate B.2.07 




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3.2.26 Transfer Charger Assembly 

1 . Perform this procedure: 3.2.01 . 

2. Push the lock lever towards the back of the printer and raise the upper unit. 

3. Firmly push down and back on both sides (1) of the transfer charger assembly (2) until the lower cover 
claws are disengaged from the square holes on each end of the transfer charger assembly. 

CAUTION: 

When removing the transfer charger assembly, be careful not to break the tabs. 

4. Lift and remove the transfer charger assembly. 

5. Remove the end caps of the transfer charger assembly. 

6. Using a needle nose pliers, detach the spring. 

7. Detach the transfer wire from the clip and remove. 

8. When installing the transfer wire, place it so the notch matches the dot in the diagram engraved 
at the bottom of the assembly. 

CAUTION: 

When installing the transfer charger assembly, make sure the assembly is locked under the claws. 
If the assembly is not locked, the image drum will be scratched. 

NOTE: 

When cleaning the transfer wire, use the cleaning tool (3) located under the LED holder. (Section 3.4, 
Cleaning) 

P/N 50087401 Charger: Transfer (Assembly) RSPL B.2.07 

P/N 53528001 Transfer Wire Cleaner B.2.04 




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3.2.27 Registration Roller Assembly 

1 . Perform this procedure: 3.2.01 . 

2. Push the lock lever towards the rear of the unit and raise the upper unit. 

3. Using a standard screwdriver, release the claws (1) from both sides of the registration roller assembly 
(2). 

CAUTION: 

The claws can be accessed from the bottom of the printer. Be careful when pushing on the claws. 
Too much force could break them. 

4. Remove the registration roller assembly. 

P/N 50079101 Roller: Registration (Assembly) RSPL B.2.07 




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OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



Page: 87 



3.2.28 High Voltage Connector 

1. Perform these procedures: 3.2.01, 3.2.02, 3.2.05, 3.2.06, 3.2.07, 3.2.08, and 3.2.09. 

2. Working from the bottom of the unit, release the claw of the high voltage connector (1 ). 

3. Set the unit down. 

4. Use a straight-slot screwdriver and work the high voltage connector free. 

5. Remove the high voltage connector. 

P/N 56725901 High Voltage Connector B.2.08 




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3.2.29 Idle Gear and Post 

1 . Perform these procedures: 3.2.01 and 3.2.26. 

2. Use needle nose pliers to work the post (1 ) free of the guides. 

3. Remove the post. 

4. Remove base idle gear (2). 
NOTE: 

The cutout (3) on the post should be positioned to the left side of the printer and on the top when installing. 
P/N 51218601 Gear: Idle (Base) RSPL B.2.08 
P/N 53329501 Post RSPL B.2.08 




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3.2.30 Paper Supply Unit 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, and 3.2.07. 

2. Press the lock lever backward and raise the upper unit. 

3. Disconnect the cable (1 ) from connector J5 (2) on the engine controller circuit board. 

4. Remove the two mounting screws (3). 

5. Lift the paper supply assembly (4) at its front until the frame of the unit comes off the guide pins, then 
move the unit towards you for removal. 

6. Be careful not to lose the cassette spring (5). 

7. Note the position of the static discharge cloth (6). 
P/N 50214506 Unit: Paper Delivery RSPL B.2.07 
P/N 50917001 Spring: Cassette RSPL B.2.07 

P/N 51802501 Diselectrification Cloth B.2.08 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.31 Registration Motor 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, and 3.2.30. 

2. Remove the screw (1). 

3. Remove the two mounting screws (2). 

4. Detach the registration motor (3) from the motor bracket (4). 
P/N 53335002 Motor Bracket B.2.1 1 

P/N 56507401 Motor: Pulse (Registration) RSPL B.2.1 1 
P/N 51223101 Idle Gear "B" B.2.1 1 




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3.2.32 Engine Connector Board, LLCC 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, and 3.2.30. 

2. Remove the two mounting screws. (1) 

3. On the paper supply unit, press the pointed end of the nylon latch (2) to push out the head (3) 

4. Remove the latch. 

5. Detach the engine connection board (4). 

P/N 55044601 PCB: LLCC (Engine Connector) RSPL B.2.1 1 




2,3 







1 <? 




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3.2.33 Hopping Roller A 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, and 3.2.30. 

2. Remove the two screws (1) and slide the upper plate assembly (2) until the claws (3) are unlocked. 

3. Push the paper lever (4) down. 

4. Remove the upper plate assembly. 

5. Remove the screw (5). 

6. Remove the ground plate (6). 

7. Press the hopping roller shaft (7), then remove the pin (8) from the hopping roller gear (9). 

8. Lift the right side of the hopping roller shaft and remove it. 

9. Remove hopping roller B (10). 

1 0. Remove the E-ring (1 1 ). 

11. Remove hopping roller A (12). 

NOTE: 

When installing, always mount the hopping roller shaft above the ground plate, which is on the left side of 
the printer. 

P/N 50081 701 Roller: Hopping (Assembly) RSPL B.2.1 1 

P/N 50705401 E-Ring B.2.1 1 

P/N 51111501 Hopping Roller Shaft B.2.1 1 

P/N 51222901 Hopping Gear B.2.1 1 

P/N 51223001 Planet Gear B.2.1 1 

P/N 53334901 Hopping Roller B B.2.1 1 

P/N 53528501 Paper End Lever B.2.1 1 




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3.2.34 Separator 

1 . Perform these procedures: 3.2.01 , 3.2.02, 3.2.05, 3.2.06, 3.2.07, and 3.2.30. 

2. Hold the separator (1) down and remove the escape lever (2) from the pins on the paper supply unit. Be 
careful not to lose the separator spring (3). 

3. Remove the separator. 

P/N 5091 71 01 Spring: Separator RSPL B.2.1 1 

P/N 53500501 Separator RSPL B.2.1 1 

P/N 53528601 Escape Lever B.2.1 1 

P/N 50918601 Latch Spring B.2.1 1 

P/N 51111 601 Latch Shaft B.2.1 1 

P/N 53335101 Upper Plate B.2.1 1 

P/N 53335201 Side Frame Assembly (Left) B 2 1 1 

P/N 53335301 Side Frame Assembly (Right) B.2.1 1 

P/N 53335401 Separator Frame B.2.1 1 

P/N 53528701 Setting Lever B.2.1 1 

P/N 53528801 Latch Lever B.2.1 1 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.35 Base Frame 

NOTE 

The base frame is the plastic base for the printer. All previous disassembly procedures must be performed 
to reach the base frame. 

The connector cap (1) may be accessed from the underneath the printer. No other disassembly 
procedures are required to access this part. 

P/N 53057801 Base Frame B.2.07 

N/A Cap B.2.08 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.36 Ozone Filter 

NOTE: 

A replacement ozone filter is provided with the image drum cartridge kit. The filter should be replaced 
when the image drum cartridge is replaced. 

1 . Perform this procedure: 3.2.01 . 

2. Using a screwdriver, insert the blade under the lower portion of the fan cover (1 ) and twist the 
screwdriver to remove the fan cover. 

3. Remove the ozone filter (2) from the fan cover. 
P/N 53527301 Fan Cover B.2.02 

P/N 55503501 Filter: Ozone Consumable B.2.02 and 16 In Image Drum Cartridge Kit 

P/N 56106601 Image Drum Kit Consumable B.2.16 Includes an Image Drum and Ozone Filter 




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OKIDATA 



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Service Guide OL810 

Chapter 3 Maintenance 



3.2.37 Second Paper Feed Unit (Option) 

1 . Perform this procedure: 3.2.01 . 

2. Lift the printer from the second paper feed unit (1 ). 

Installation 

When installing the optional second paper feed unit, your must remove the connector cap. The cap is 
accessed from the bottom of the printer. 

3. Use a small straight-slot screwdriver to release the tabs of the cap (2). 

4. Remove the cap. 

P/N 51901701 CapB.2.08 

P/N 70018601 Second Paper Feed Unit Option B.2.12 and 14 

P/N N/A Blind Cover B.2. 14 

P/N N/A Blind Cover (Rear Panel) B.2.14 

P/N N/A Shield Base B.2.14 

P/N N/A Thumb Screw B.2.14 

P/N N/A Top Plate Assembly B.2.14 

P/N 53059401 Lower Base B.2.14 

P/N 53059501 Blind Cover B.2.14 

P/N 53505301 Rubber Foot B.2.14 




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3.2.38 Second Paper Feed Unit Boards and Connectors 

1 . Perform these procedures: 3.2.01 and 3.2.37. 

2. Squeeze the clamps on the ends of the connector (1 ) and lift to remove it. 

3. Remove the eight screws (2). 

4. Remove the shield (3). 

5. Remove the connection board, LLIG (4). 

6. Remove the four screws (5). 

7. Remove the LLIF board (6). 

8. Remove the screw (7). 

9. Remove the shield (8) with connector AKJ-40AG (9). 

1 0. Work the connector free of the bracket and remove the connector. 
P/N 55067001 PCB: LLIF B.2.14 

P/N 55067101 Connection PCB (LLIG) B.2.14 
P/N 56725201 Connector AKJ-40AG B.2.14 
P/N 56726001 Connector PM8DOX B.2.14 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.39 Second Paper Supply Unit (Option) 

1 . Perform these procedures: 3.2.01 and 3.2.37. 

2. Remove the front panel (1 ). 

3. Remove the two screws (2). 

4. Press the paper supply unit release lever (3) down. 

5. Remove the second paper supply unit (4). 

P/N 50063501 Second Paper Supply Unit Option RSPL B.2.12 and 14 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.40 Cassette Spring (Second Paper Supply Unit) 

1 . Perform these procedures: 3.2.01 , 3.2.37, and 3.2.39. 

2. Raise the latch lever (1 ). 

3. Remove the cassette spring (2). 

Installation 

When installing the cassette spring, keep the latch lever pressed down and the cassette set lever (3) 
pushed up. After the cassette spring is installed, press the cassette set lever down. 



P/N 50917001 Spring: Cassette RSPL B.2.14 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.41 Registration Motor (Second Paper Supply Unit) 

1 . Perform these procedures: 3.2.01 , 3.2.37, and 3.2.39. 

2. Remove the two screws (1 ) and detach the pulse motor (2), being careful not to damage the pins. 

Installation 

Set the pulse motor on the bracket (3). Be careful not to scrape the pins against the LLFC Circuit 
Board (4). 

Check that the pins of the pulse motor are securely in contact with the LLFC Circuit Board. Then, 
attach the pulse motor with the two screws. 



P/N 56507401 Motor: Pulse (Registration) B.2.14 




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Service Guide OL810 

Chapter 3 Maintenance 



3.2.42 Second Paper Supply Unit Control Board, LLFC 

1 . Perform these procedures: 3.2.01 , 3.2.37, and 3.2.39. 

2. Remove the two screws (1). 

3. Remove the second paper supply unit control board (2) from the guides (3). 
P/N 55051401 PCB: LLFC (2nd Tray) Option RSPL B.2.12 and 14 




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3.3 ADJUSTMENTS AND SERVICE SETTINGS 

General Information 

This section contains the procedures for resetting counters and performing adjustments and service 
settings. These procedures may be required when replacing either consumables or parts. The 
disassembly/assembly procedures list the required adjustments and refer you to this section. Failure to 
perform these procedures may result in unnecessary service calls. 

There are three modes available to the service technician. 

• Maintenance Mode 

• System Maintenance Mode 

■ Switch 1 Maintenance Mode 

Some adjustments and service settings are accomplished through Switch 1 (SW1) on the engine 
controller board. SW1 accesses the addresses on the EEPROM located on the engine controller board. 



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3.3.01 Drum Counter Reset 

The drum counter is stored in EEPROM Address 2. 

Reset the drum counter when a new image drum in installed. 

The drum counter is reset through the operator panel. 

1 . Power OFF the printer. 

2. Press and hold the MENU 1 / Menu 2 switch while powering ON the printer. 

3. The message MAINTENANCE MODE will be displayed on the operator panel. 

4. Press the MENU 1 / Menu 2 switch three times. 

5. The message DRUM COUNT RESET will be displayed on the operator panel. 

6. Press the ENTER / Quiet switch. 

7. The messages listed below will be displayed. 
DRUM COUNT RESET 

RESETTING 
INITIALIZING 
WARMING UP 
ON-LINE 

8. The printer will initialize and return to an ON-LINE condition. 

NOTE: 

The CHANGE DRUM message will appear on the operator panel display when the image drum 
reaches 90% of its life. If a new image drum is installed, but the counter is not reset, the message will 
continue to be displayed. 



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3.3.02 Darkness Control 

The Darkness Control Setting is stored in EEPROM Address 10. 

It is adjusted from the Level 2 MENU. This adjustment changes the degree of character density. 

The default value is 0. You may choose between -2, -1 , 0, +1 , and +2. 

The setting for Darkness Control does not change when the printers emulation is changed. 

1 . Place the printer OFF-LINE. 

2. Press the MENU 1 / Menu 2 switch and hold it in for more than 2 seconds. 

3. The first MENU category of the Level 2 MENU will appear on the display. 

4. Press the MENU 1 / Menu 2 switch until the word "Darkness" appears on the display. 

5. Press the NEXT / + switch to toggle the values until the desired setting is reached. 

6. Press ENTER / Quiet to store the new setting. 



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Service Guide OL810 

Chapter 3 Maintenance 



3.3.03 Switch 1 Maintenance Mode 

Some adjustments and service settings are accomplished through the operator panel. Others are 
accomplished through Switch 1 (SW1) on the engine controller board. SW1 accesses the addresses on 
the EEPROM located on the engine controller board. 

To perform procedures which use SW1 , setup the printer for maintenance mode. 

1 . Press the OPEN switch and raise the stacker cover. 

2. Press the two lock levers and open the LED holder. 

3. Lift and remove the image drum cartridge. To protect the image drum cartridge, place it back in its 
styrofoam shipping package. 

4. Close the LED holder. 

5. Press the lock lever and raise the upper unit. 

6. Override the cover open switch (1). 

7. Power ON the printer while pressing SW1 (2) on the engine controller board. 

8. The LED (3) will flash once, then pause. The LED will continue to flash once, then pause. This indicates 
that the printer is in Parameter 1 of the maintenance mode. 




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Service Guide OL810 

Chapter 3 Maintenance 



Actual Page Count 
NOTE: 

The actual page count cannot be changed. 

The Actual Page Count is stored in EEPROM Address 1 . 

The Actual Page Counter counts the number of sheets printed by the printer. 

The value of the Actual Page Counter will be displayed as follows: 

1 . Setup the printer for Switch 1 Maintenance Mode. 

2. Press Switch 1 for five seconds. 

3. The LED will display the contents of the Parameter 1 (Actual Page Counter) register. 
The long flash indicates start of count. 

Short flashes indicate counter contents (most significant digit first). 

Ten flashes = 0. 

There will be a pause between digits. 

Upon completion of the count, a long flash will indicate start of count. 

This process will loop until you press Switch 1 for five seconds. This will cause the Modified Page 
Count to be displayed. 



4. Press Switch 1 for one second. 

5. Power OFF the printer. 
Actual Page Count Example 

The Actual Page Count = 235 pages. 



Switch 1 Action 


LED Display 


Description 


Press at Power ON 


Flashes ON/OFF 


Parameter 1 selected 


Press for 5 seconds 


Long Flash 


Start of Count 


None 


On-Off-On-Pause 


1st Digit = 2 



None 


On-Off-On-Off-On-Pau 
se 


2nd Digit = 3 


None 


On-Off-On-Off-On-Off- 
On-Off-On-Pause 


3rd Digit = 5 


None 


Long Flash 


Start of Count 


Press for 5 seconds 


Long Flash 


Start of Modified Page Count 



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Modified Page Count 

NOTE: 

The Modified Page Count cannot be changed. 

To access the Modified Page Count, you must first view the Actual Page Count. 

The Modified Page Count is stored in EEPROM Address 1 , after the Actual Page Count. 

The Modified Page Counter combines the main motor revolution time and the number of printed sheets. 
Drum replacement is determined by the Modified Page Count. The Modified Page Count considers the 
type of printing being performed. For example, if the printer performs many single page print jobs, the 
Modified Page Count will be greater than the Actual Page Count. 

The value of the Modified Page Count will be displayed as follows. 

1 . Setup the printer for Switch 1 Maintenance Mode. 

2. View the Actual Page Count. 

3. Press Switch 1 for five seconds. 

4. The LED will display the contents of the Parameter 1 (Modified Page Count) register. 
The long flash indicates start of count. 

Short flashes indicate counter contents (most significant digit first). 

Ten flashes = 0. 

There will be a pause between digits. 

Upon completion of the count, a long flash will indicate start of count. 

This process will loop until you press Switch 1 . 

5. To end this procedure, press Switch 1 for 1 second. 

6. The LED will perform one short flash to indicate Parameter 1 is selected. 

7. Power OFF the printer. 
Modified Page Count Example 

The Modified Page Count = 142 pages. 



Switch 1 Action 


LED Display 


Description 


The first step in this table is 
also the last step in the Actual 
Page Counter Example Table 






Press for 5 seconds 


Long Flash 


Start of Modified Page Count 


None 


On-Pause 


1st Digit = 1 


None 


On-Off-On-Off-On-Off-On-P 
ause 


2nd Digit = 4 


None 


On-Off-On-Pause 


3rd Digit = 2 


None 


Long Flash 


Start of Count 





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Fuser Counter Reset 

The fuser counter is stored in EEPROM Address 3. 

This counter should be reset when a new fusing unit is installed. 

Follow this procedure to reset the fuser counter. 

1 . Setup the printer for Switch 1 Maintenance Mode. 

2. Press Switch 1 twice (one second each time) to access Parameter 3. 

3. The LED will flash three times, indicating Parameter 3. 

4. Press Switch 1 once for five seconds. 

5. The LED will display the contents of Parameter 3. 
The long flash indicates start of count. 

Short flashes indicate counter contents (most significant digit first). 

Ten flashes = 0. 

There will be a pause between digits. 

Upon completion of the count, a long flash will indicate start of count. 

This process will loop until you press Switch 1 . 

6. Press Switch 1 for five seconds. This will reset the counter to zero. 

7. To end the adjustment, press Switch 1 for five seconds. 

8. The LED will flash three times, indicating Parameter 3. 

9. Power OFF the printer. 



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Vertical Print Start Position Adjustment 

The Vertical Printer Start Position is stored in EEPROM Address 9. 

The Vertical Print Start Position Adjustment is used to set the top of form position. Use this adjustment to 
correct print start variations between different printers, or to achieve 4.6 mm Vertical Print Start Position, 
the default value. The default value is stored in the EEPROM Parameter of the EEPROM Address 9. 

Follow this procedure to change the Vertical Print Start Position. 

1 . Setup the printer for Switch 1 Maintenance Mode. 

2. Press Switch 1 eight times (one second each time) to access Parameter 9. 

3. The LED will flash nine times, indicating Parameter 9. 

4. Press Switch 1 once for five seconds. 

5. The LED will display the contents of Parameter 9. 
The long flash indicates start of count. 

Short flashes indicate counter contents (most significant digit first). 

Ten flashes = 0. 

There will be a pause between digits. 

Upon completion of the count, a long flash will indicate start of count. 

This process will loop until you press Switch 1 . 

6. Press Switch 1 for X times. 

X= the increments needed to move from the stored parameter contents to the desired parameter. 

To move from the default value of (0 Parameter) to -0.5 millimeter (Parameter 1 5), press Switch 1 
fifteen times. 

7. To end the adjustment, press Switch 1 for five seconds. 

8. The LED will flash nine times, indicating Parameter 9. 

9. Power OFF the printer. 



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Service Guide OL810 

Chapter 3 Maintenance 



Chart of EEPROM Parameters and Print Start Positions 

follows 15 when incrementing through the parameters. 



EEPROM Parameter 


Print Start Position 




(in millimeters) 





+/- 0.0 


1 


+ 0.5 


2 


+1.0 


3 


+1.5 


4 


+2.0 


5 


+2.5 


6 


+3.0 


7 


+3.5 


8 


-4.0 


9 


-3.5 


10 


-3.0 


11 


-2.5 


12 


-2.0 


13 


-1.5 


14 


-1.0 


15 


-0.5 



Adjustment 
direction 




Default value: 4.Gmm 



Print data of LSYNC after FSYNC 



Paper feeding FSYNC 

d Taction 



LSYNC \f 

WDATA" 



V 



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Setting the LED Head Drive Time 

The LED Head Drive Time setting is stored in EEPROM Address 13. 

This adjustment may need to be performed when an LED head is replaced. However, if the luminous 
energy ratings of the new and original LED Heads are the same, adjustment is not necessary. The 
luminous energy rating is on the label on the LED Head. The third and second digits, reading from the 
right, are the drive time rating. 

Follow this procedure to change the LED Head Drive Time. 

1 . Setup the printer for Switch 1 Maintenance Mode. 

2. Press Switch 1 twelve times (one second each time) to access Parameter 13. 

3. The LED will flash thirteen times, indicating Parameter 13. 

4. Press Switch 1 once for five seconds. 

5. The LED will display the contents of Parameter 13. 
The long flash indicates start of count. 

Short flashes indicate counter contents (most significant digit first). Ten flashes = 0. 

There will be a pause between digits. 

Upon completion of the count, a long flash will indicate start of count. 

This process will loop until you press Switch 1 . 

6. Press Switch 1 for X times. X= the increments needed to move from the stored parameter contents to 
the desired parameter. The moves are made in increments. 

7. To end the adjustment, press Switch 1 once for five seconds. 

8. The LED will flash thirteen times, indicating Parameter 13. 

9. Power OFF the printer. 

10. Perform a Continuous Print Test. If the print quality is not satisfactory, reset the drive time to the 
parameter immediately before or after the value just set. Determine which parameter is appropriate by 
comparing print samples. 

CAUTION: 



The OL810 printhead should not be used in non-OST Okidata printers. 

The barcoded intensity rating label on the upper left side of the LED head will tell you which LED head you 
are working with. A designation of 300T supports OST A designation of 300S does not support OST. 

When replacing the OL810 LED head, you must install an LED head with OST capability. If you install a 
standard (non-OST) LED head, the printer will not function properly. A "mirror image" of the desired data 
will print. The printer will print "mirror images", regardless of the Smoothing Setting in the Level 2 menu. 

Chart of LED Head Drive Time Settings 

NOTE: 

O follows 15 when incrementing between parameters. 



Luminous Intensity Rating on LED Head 


Drive Time Setting 




(Parameter) 


14 and 15 





12 and 13 


1 


11 


2 


10 


3 




4 




5 


30 


10 


26 to 29 


11 


23 to 25 


12 


20 to 22 


13 


18 and 19 


14 


16 and 17 


15 




89 002 7il 6i1 



Manufivlur* Numb + r I ■ Bank 

Lurnlnaut Intensity 



A4 

30OS 



r — — - 



IIM llllllltl I IliLimill IIEIIlllHIIDm 



yaituractjr* Numb 



•r I ■ — 



Rank 



Luminous Intensity 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.3.04 Smoothing Select 

The Smoothing Select setting is stored in EEPROM Address 1 1 . 

Smoothing may be set ON or OFF. The default value is ON. With Smoothing ON, the printer utilizes 
Okidata Smoothing Technology (OST). 

1 . Place the printer OFF-LINE. 

2. Press and hold the LAST - / Smoothing switch. 

3. Use either LAST - or NEXT + to toggle between the settings ON and OFF. 

4. Press ENTER / Quiet to save your selection. 

5. The printer will go ON-LINE. 



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Page: 113 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



3.3.05 DC Voltage Check (+5 vdc) 
NOTE: 

You can check the voltage level, but it cannot be adjusted. 

1 . Remove the upper cover. 

2. Remove the image drum cartridge. 

3. Remove the paper supply unit. 

4. Remove the engine controller circuit board (LLAB-2). 

5. Remove the main motor assembly. 

6. Use a digital multimeter which has an input impedance of 1 Mohms and is capable of displaying to the 
second decimal place or farther. 

7. Check the voltage at CN1 of the interconnect board between Pin 31 , 5V and Pin 27, 0V 

8. The value should be + 5.0 vdc (+/- 0.1) 



Variable resiiter 
RV1 




AC Lira Fun 
F2 R; ■!» V Lira FU» 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.3.06 Menu Operation 

NOTE: 

Using the commands sent from the computer will override the features set in the menu. However, when 
the printer is powered OFF, features set by this method will be canceled. Features set in the menu will 
stay in effect, even when the printer is powered OFF. 

General Information 

Menu Mode allows customization of printer settings and features. Selections made are stored in the 
printers EEPROM. However, they can be changed through software commands or by resetting the menu. 

The Menu is made up of a number of Categories. 

Each Category has a list of Settings. 

Current Settings are indicated with an asterisk (*). 

Refer to the Printer Handbook for a full explanation of menu selections. 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



Menu Mode 

1 . Verify that the printer is ON-LINE. The READY light is lit. 

2. Press ON-LINE to place the printer OFF-LINE. The READY light IS NOT lit. 

3. To access the desired menu, follow one of the steps listed below. 
For the Primary Menu, press and release MENU 1 . 

For the Secondary Menu, press and hold MENU 1 / Menu 2 for more than two seconds. 

4. The first menu category will appear on the operator panel display. 

5. To move between categories, press MENU 1 / Menu 2. 

6. Each category has several possible settings. 

To view the settings, follow either of the steps listed below. 

Press NEXT + / Demo to view the next setting. 

Press LAST - / Smoothing to view the previous setting. 

7. When the desired setting is displayed, press ENTER to store the setting. 
Current settings are displayed with an ASTERISK (*). 

8. To exit Menu Mode, press RESET. 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



Printing the Menu 

The Menu Print can provide the following information to the service technician. 

Program ROM Revision Level (CU and PU) 
Font ROM Revision Level 
Amount of Printer Page Memory 
Factory Menu Settings 
User Selected Menu Settings 

Printing the Menu provides a reference of current menu settings. 

This will help you move through the menu. 

Okidata STRONGLY RECOMMENDS printing the Menu before resetting the Menu to factory defaults. 

Once the Menu is reset, all customized settings are LOST. 

To print the Menu, follow these steps. 

1 . Power ON the printer and wait for the printer to go ON-LINE. 

2. Press the ON-LINE switch to take the printer OFF-LINE. 

3. Press the PRINT FOHTS/Print Menu switch for 3 seconds. 

4. The DATA lamp will turn ON, the READY lamp will flash and the message MENU PRINT will be 
displayed on the operator panel. 

5. The Menu will print. 

6. When printing is completed, the printer will be OFF-LINE. Press the ON-LINE switch to place the printer 
ON-LINE. 

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Page: 117 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



Sample 



OL810 LED PAGE PRINTER 



Progra* ROM 
Page Menorf 



I CU 01.92 ADD PU 00.07 
i 41* Byte* Installed 



PONT 00.16 



Operator Paiual Menu Bettings 

Laval- 1 

Ooawm Factory 



EMULATION 

COPIES 

PAPER FEED 

AUTO TRAY SWITCH 

TRAY1 PAPER SIZE 

TRAY2 PAPER SI£E 



HP LJ III 

1 

TRAY1 

OFF 

UNIVERSAL=A4 
UNIVERSAL=A4 



HP LaaarJat III emulation 



ORIENTATION 
FONT SOURCE 
FORT Mo. 
SYMBOL SET 
HP CARTRIDGE 
LINES PER PAGE 
hi PRINT WIDTH 



PORTRAIT 
RESIDENT 
1000 
Roman- B 

NONE 

60 LINES 

78 COLUMN 



User 



HP LJ III 

1 

TRAY1 

OFF 

UNIVBRSAL-A4 

UNIVERSALE 4 



PORTRAIT 

RESIDENT 

1000 

RoBin-S 

NONE 

£0 LIMES 

7B COLUMN 



Le*el-2 

SMOOTHING 

PAGE PROTECTION 

HOST INTERFACE 

FLOW CONTROL 

BAUD RATE 

DATA BITS 

PARITY 

MI N. BUSY TIME 

DARKNESS 

TIME TO QUIET 

AUTO CONTINUE 

LEGAL LENGTH 

LANGUAGE 



ON 

OFF 

PARALLEL 

DTR HI POLARITY 

9600 BAUD 

8 BITS 

NONE 

3D0m.SEC 



8 MINUTES 

OFF 

14 INCH 

ENGLISH 



ON 

OFT 

RB232C 

DTR MI POLARITY 

19200 BAUD 

7 BITS 
EVEN 

2 00ns EC 
+2 

8 MINUTES 
OFF 

14 INCH 
ENGLISH 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



Reset Menu to Factory Defaults 

CAUTION: 

Once the menu has been reset, all customized menu settings will be lost. 
Always print the menu before resetting the printer to factory defaults. 
To reset the menu to factory default settings, follow this procedure. 

1 . Power OFF the printer. 

2. Press and hold MENU 1 / Menu 2 while powering ON the printer. 

Continue to hold MENU 1 / Menu 2 until MAINTENANCE MODE is displayed on the operator panel. 

3. Press MENU 1 / Menu 2. 

4. Press ENTER /QUIET. 

■ 

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Page: 119 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



Menu Settings 

Primary Menu - HP LaserJet III Emulation 

Factory default settings are printed in Bold Italic. 

Selections marked with an asterisk (*) appear ONLY when an option is installed. 



Category 


Selection 


Explanation 


Emulation 


HPLJIII IBM PPR III 

XL 


Change Emulation 


Copies 


01 to 99 


Select the number of copies to print by 
cycling through the numbers with the 
NEXT + and LAST - buttons. 


Paper Feed 


Tray 1 Tray 2 * 
Manual Feed 


Select whether paper will be fed from the 
upper paper tray (Tray 1 ) the optional 
lower paper tray (Tray 2) or the manual 
feed tray. 


Auto Tray Switch * 


Off On 


Automatically switch to the lower tray 
when the upper tray is empty. This 
feature is active ONLY when the optional 
lower tray is installed. 


Tray 1 Paper Size * 




Select paper / envelope size when the 
optional universal paper tray or envelope 
tray is installed as Tray 1 . 




Universal = LETTR 






Universal = Exec 






Universal = A4 


A4 = 210x297 millimeters 




Universal = A5 


A5 = 148x210 millimeters 




Universal = A6 


A6 = 105x 148 millimeters 




Universal = B5 


B5 = 182x257 millimeters 




Envelope = COM10 


COM10 = 4.12x9.5 inches 




Envelope = MONRC 


MONRC = 3.87 x 7.5 inches 




Envelope = DL 


DL =111 x223 millimeters 





Envelope = C5 


CF= 163x234 millimeters 


Tray 2 Paper Size * 




This feature displays ONLY when the 
optional second paper tray is installed. 






DO NOT feed envelopes from Tray 2. 




Universal = LETTR 






Universal = Exec 






Universal = A4 


A4 = 210x297 millimeters 




Universal = A5 


A5 = 148x210 millimeters 




Universal = B5 


B5 = 182x257 millimeters 


Orientation 


Portrait or Landscape 


Select the direction of print on the paper. 






Portrait printing is normal printing across 
the width of the paper. 






Landscape printing prints across the 
length of the paper. 



Factory default settings are printed in Bold Italic. 

Selections marked with an asterisk (*) appear ONLY when an option is installed. 



Category 


Selection 


Explanation 


Font Source 


Resident Upper Card * Lower 
Card * Downloaded * 


This specifies whether the default is the 
internal (resident) font set a font card 
or a downloaded set. 






Card and Downloaded selections appear 
ONL Y if these options are installed in 
the printer. 


Font Number 


IOOO 


Select the default font by identification 
number from the available fonts based on 
selected orientation and font source. 






The prefix indicates the font source. 






I = Internal (Resident) 






U = Upper Card 






L = Lower Card 






S = Soft (Downloaded) 






Refer to the Font Print Sample. 


Symbol Set 


Roman-8 


Select the default symbol set. 







Roman-8 is the standard Hewlett-Packard 
set. 






Many other special purpose sets are 
available. 






Refer to Appendix C in the Printer 
Handbook for a comprehensive list of 
symbol sets. 


HP Cartridge 


None F B 


These are Hewlett-Packard Font cartridge 
designations. 






When printing documents formatted for the 
OL400 verify that this setting works with 
the software. Otherwise use the default 
setting NONE. 


Line Per Page 


60 Lines 5 to 128 Lines 




A4 Print Width 


78 column 80 column 


A4 paper is slightly narrower than standard 
letter size. 






Eighty 10-pitch characters WILL NOT fit in 
the printable area of an A4 page. 






When this selection is set to 80 column the 
printer condenses the characters slightly 
so that 80 characters will fit on a line. 



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OKIDATA 



Page: 120 



Service Guide OL810 

Chapter 3 Maintenance 



Menu Settings 

Primary Menu - IBM ProPrinter III XL Emulation 

Factory default settings are printed in Bold Italic. 

Selections marked with an asterisk (*) appear ONLY when an option is installed. 



Category 


Selection 


Explanation 


Copies 


01 to 99 


Select the number of copies to print by 
cycling through the numbers with the 
NEXT + and LAST - buttons. 


Paper Feed 


Tray 1 Tray 2 * Manual Feed 


Select whether paper will be fed from 
the upper paper tray (Tray 1 ) the 
optional lower paper tray (Tray 2) or the 
manual feed tray. 


Auto Tray Switch * 


Off On 


Automatically switch to the lower tray 
when the upper tray is empty. This 
feature is active ONLY when the 
optional lower tray is installed. 


Tray 1 Paper Size * 




Select paper / envelope size when the 
optional universal paper tray or envelope 
tray is installed as Tray 1 . 




Universal = LETTR 






Universal = Exec 






Universal = A4 


A4 = 210x297 millimeters 




Universal = A5 


A5 = 148x210 millimeters 




Universal = A6 


A6 = 105x 148 millimeters 




Universal = B5 


B5 = 182x257 millimeters 




Envelope = COM10 


COM10 = 4.12x9.5 inches 




Envelope = MONRC 


MONRC = 3.87 x 7.5 inches 




Envelope = DL 


DL =111 x223 millimeters 




Envelope = C5 


CF= 163x234 millimeters 



Tray 2 Paper Size * 




This feature displays ONLY when the 
optional second paper tray is installed. 






DO NOT feed envelopes from Tray 2. 




Universal = LETTR 






Universal = Exec 






Universal = A4 


A4 = 210x297 millimeters 




Universal = A5 


A5 = 148x210 millimeters 




Universal = B5 


B5 = 182x257 millimeters 


Orientation 


Portrait or Landscape 


Select the direction of print on the paper. 






Portrait printing is normal printing across 
the width of the paper. 






Landscape printing prints across the 
length of the paper. 



Factory default settings are printed in Bold Italic. 

Selections marked with an asterisk (*) appear ONLY when an option is installed. 



Category 


Selection 


Explanation 


Character Pitch 


10 12 17 20CPI Proportional 


Choose the number of characters 
per inch. 


Font Style 


Normal Emphasize Italic 




Enlarge Font 


Height x 1 Width x 1 Height x 2 Width 
x 1 Height x 1 Width x 2 Height x 2 
Width x 2 


Choose the parameters to enlarge the 
current font. 


Character Set 


Set1 Set 2 


Choose between IBM Character Sets 
1 and 2. 


Symbol Set 


IBM-437 


There are many symbol sets to choose 
from. 






Refer to Appendix C in the Printer 
Handbook for a comprehensive list. 


Line Length 


80 column 136 column 


Choose the line length. 


Form Length 


11 inch (Letter) 1 1 .7 inch (A.4) 12 
inch 


Choose the paper size for the current 
tray. 


Auto CR / LF 


CR = CR LF= LF CR = CR + LF LF 

= CR + LFCR = CRLF LF = CRLF 





Form Feed at 
TOF 


Feed Enable Feed Disable 


Turn the form feed feature on or off. 


Font Condense 


12 cpi to 20 cpi 1 2 cpi to 1 2 cpi 




Zero Style 


Without Slash With Slash 


Choose a slashed or unslashed zero. 


Slash Letter 


Disable Enable 


Choose a slashed or unslashed letter 
0. 



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Page: 121 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



Menu Settings 

Secondary Menu - Both Emulations 

Factory default settings are printed in Bold Italic. 

Selections marked with an asterisk (*) appear ONLY when an option is installed. 



Category 


Selection 


Explanation 


Smoothing 


On Off 


Turn OKI Smoothing Technology 
ON or OFF. 


Page Protection * 


Off Letter Legal A4 


This feature IS NOT active unless the 
optional memory is installed. Choose 
the type of paper you are using. 


Host Interface 


Parallel RS232C * 




l-PRIME 


Off On 


This choice displays ONLY if a 
parallel interface is being used. 


Flow Control * 


DTR Hi Polarity DTR Lo Polarity 
SSD Hi Polarity SSD Lo Polarity XON 
/XOFF 


This choice displays ONLY if the 
optional serial interface is being 
used. 


Baud Rate RS232 * 


9600 19200 


This choice displays ONLY if the 
optional serial interface is being 
used. 


Data Bits RS232 * 


8 bits 7 bits 


This choice displays ONLY if the 
optional serial interface is being 
used. 


Parity RS232 * 


None Even Odd 


This choice displays ONLY if the 
optional serial interface is being 
used. 


Min. Busy RS232 * 


200 ms 1 second 


This choice displays ONLY if the 
optional serial interface is being 
used. 


Robust XON RS232 * 


Off On 


This choice displays ONLY if the 
optional serial interface is being 
used. 


Darkness 


-2-1012 


Controls the density of the print. 



Time to Quiet 


8 minutes 1 minute Disable 


Set the time to wait before entering 
Quiet Mode. 


Auto Continue 


Off On 


Choose ON if you want the printer to 
continue after an error. 


Legal Length 


14 inches 13 inches 


Select the type of legal paper being 
used. 


Language 


English Deutch (German) Francais 
(French) Italiano (Italian) Castellano 
(Spanish) 


Select the language for the Menu. 



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OKIDATA 



Page: 122 



Service Guide OL810 

Chapter 3 Maintenance 



3.3.07 Key Combinations 


Key Combinations 


Description 


MENU 1 / Menu 2 (Hold during power ON until 
MAINTENANCE MODE is displayed on the 
operator panel) 


Access the Maintenance Mode. 


RECOVER / Reset (Hold during power ON until 
SYS. MAINTENANCE is displayed on the operator 
panel) 


Access the System Maintenance Mode. The end 
user SHOULD NOT access this mode. 




Press MENU 1 / Menu 2 to move between the four 
settings. 




Paper Count 




Displays the total number of pages printed as 
calculated by the engine 




section. 




Refer to Section 3.3 of this Service Handbook. 




To exit power OFF the unit. 




Continuous Print 




Activates the Continuous Print (Rolling ASCII) 
Test. 




Refer to Section 4.8 of this Service Handbook. 




To exit power OFF the unit. To exit power OFF 
the unit. 




Loop Test 




Activates the Serial Interface Loopback Test 




Refer to Section 4.8 of this Service Handbook. 




To exit power OFF the unit. To exit power OFF 
the unit. 




EEPROM Reset 




Resets all menu settings (Menu 1 and Menu 2) to 
factory defaults. 





Refer to Section 3.3 of this Service Handbook. 




To exit power OFF the unit. To exit power OFF 
the unit. 




Press ENTER / Quiet to access the setting 
options. 


MENU 1 / Menu 2 (Hold while printer is OFF-LINE 
until MENU MODE message is displayed on the 
operator panel) 


Access the primary menu (Menu 1) 


MENU 1 / Menu 2 (Hold while printer is OFF-LINE 
[more than two seconds] until MENU 2 MODE 
message is displayed on the operator panel) 


Access the secondary menu (Menu 2) 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.3.08 Resets 

Reset Menu to Factory Defaults 

CAUTION: 

Once the menu has been reset, all customized menu settings will be lost. 
Always print the menu before resetting the printer to factory defaults. 
To reset the menu to factory default settings, follow this procedure. 

1 . Power OFF the printer. 

2. Press and hold MENU 1 / Menu 2 while powering ON the printer. 

Continue to hold MENU 1 / Menu 2 until MAINTENANCE MODE is displayed on the operator panel. 

3. Press MENU 1 / Menu 2. 

4. Press ENTER /QUIET. 
Reset the Drum Counter 

The drum counter is stored in EEPROM Address 2. 

Reset the drum counter when a new image drum in installed. 

The drum counter is reset through the operator panel. 

1 . Power OFF the printer. 

2. Press and hold the MENU 1 / Menu 2 switch while powering ON the printer. 

3. The message MAINTENANCE MODE will be displayed on the operator panel. 

4. Press the MENU 1 / Menu 2 switch three times. 

5. The message DRUM COUNT RESET will be displayed on the operator panel. 

6. Press the ENTER / Quiet switch. 

7. The messages listed below will will be displayed. 
DRUM COUNT RESET 



RESETTING 

INITIALIZING 

WARMING UP 

ON-LINE 

8. The printer will initialize and return to an ON-LINE condition. 

NOTE: 

The CHANGE DRUM message will appear on the operator panel display when the image drum reaches 
90% of its life. If a new image drum is installed, but the counter is not reset, the message will continue to 
be displayed. 

Reset the Fuser Counter 

The fuser counter is stored in EEPROM Address 3. 

This counter should be reset when a new fusing unit is installed. 

Follow this procedure to reset the fuser counter. 

1 . Setup the printer for Switch 1 Maintenance Mode. 

2. Press Switch 1 twice (one second each time) to access Parameter 3. 

3. The LED will flash three times, indicating Parameter 3. 

4. Press Switch 1 once for five seconds. 

5. The LED will display the contents of Parameter 3. 
The long flash indicates start of count. 

Short flashes indicate counter contents (most significant digit first). 

Ten flashes = 0. 

There will be a pause between digits. 

Upon completion of the count, a long flash will indicate start of count. 

This process will loop until you press Switch 1 . 

6. Press Switch 1 for five seconds. This will reset the counter to zero. 

7. To end the adjustment, press Switch 1 for five seconds. 

8. The LED will flash three times, indicating Parameter 3. 

9. Power OFF the printer. 



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Page: 124 



OKIDATA 



Service Guide OL810 

Chapter 3 Maintenance 



3.4 CLEANING 

3.4.01 General Information 

Routine inspection and cleaning should be performed every six months. 

1 . Remove any dropped toner and dust. 

2. Clean inside and around the printer with a vacuum cleaner (designed to pick-up toner) when necessary. 

CAUTION 

If you use a vacuum cleaner that does not have a toner filter, you may severely damage the 
vacuum cleaner. 



Cleaning Table 



Item 


Action 


Disassembly Procedure 


LED Lens Array 


1 .Clean the LED lens array when 
vertical white lines or stripes (voids 
and/or light printing) are present on 
printer output. 






2. Use the LED lens cleaner provided in 
the image drum kit. or Use isopropyl 
alcohol (90%) and a clean cotton 
swab. 






3. Place the LED head cleaner pad (or a 
cotton swab that has a small amount of 
alcohol on it) against the LED lens 
array. 






4. Slide the cleaner pad (or swab) 
across the lens array several times to 
clean the head. Use a clean portion of 
the pad on each pass. DO NOT scrub 
or scratch the LED. If you are using a 
swab and alcohol DO NOT allow 
alcohol to spill or drip inside the printer 
on any components or onto the image 
drum. 






5. Discard the used pad. 





Hopping Roller 


Clean with ethyl alcohol. 






Remember to clean the hopping roller 
on the second paper supply if installed. 




Registration Roller 


Clean with ethyl alcohol. 




Pressure Roller 


Clean with ethyl alcohol. 




Printer Unit 


Clean the inside of the unit with a 
vacuum cleaner designed to handle 
toner. If you use a vacuum cleaner 
that does not have a toner filter you 
may severely damage the vacuum 
cleaner. 




Covers 


Clean as needed. Use a soft clean 
cloth and a general purpose cleaner. 





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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.4.02 Static Charger 

Clean the static charger if vertical black lines, vertical black stripes, or toner blotching are present on 
printer output. 

1 . Power OFF the printer. 

2. Press the OPEN switch raise the stacker cover. 

3. Move the wire cleaner (1 ) of the image drum cartridge all the way to the left and then back to the right. 

NOTE: 

After the cleaning, be sure to return the wire cleaner to its original position. If you do not, a vertical black 
stripe will appear on printer output. 






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Page: 126 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.4.03 Transfer Charger 

Clean the transfer charger if vertical white lines or stripes (printed lightly) are present on printer output. 

1 . Turn OFF the power supply switch. 

2. Press the OPEN switch and raise the stacker cover. 

3. Push the lock lever backward to lift the LED holder. 

4. Remove out the wire cleaner (1). 

5. Position the wire cleaner in the transfer charger assembly as shown in Figure A. 

6. Slide the wire cleaner left and right several times across the wire. This cleans the transfer wire. 
Do not press strongly when wiping or you will break the wire. 

7. Return the wire cleaner to its storage clip. 



jffl 


m 






r]S 




! 






flKtEj** 










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Page: 127 

| r %|/|p|ATA Service Guide OL810 

Wi/P^i^/%I/» Chapter 3 Maintenance 



3.5 LUBRICATION 

3.5.01 General Information 

Silicon oil should be applied once a year to the gears. 

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Page: 128 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 3 Maintenance 



3.6 SHIPPING INSTRUCTIONS 

3.6.01 Return for Service 
CAUTION: 

When shipping the printer, use the original foam packaging to prevent damage. 

A "toner bomb" (sever toner spillage) WILL OCCUR if the image drum is not properly packaged for 
shipping. 

Okidata charges a cleaning fee for ALL products sent in for service and received by Okidata with a "toner 
bomb" condition. 

If the shipping instructions are NOT followed, Okidata may levy a surcharge against the dealership. 

1 . Locate the original foam packaging or order replacement packaging from Okidata. Refer to Appendix B 
of this Service Handbook. 

2. Remove the image drum cartridge. 

3. Place the image drum into a black plastic velostat bag. Refer to Appendix B. 

4. Store the image drum in a safe place, away from sunlight. Install the drum when the printer is returned. 

5. Pack the unit, using the materials from Step 1 . 

3.6.02 All Other Returns 
CAUTION: 

The product MUST be returned in the original packaging. 

The product MUST be returned with ALL originally supplied factory items. 

A "toner bomb" (sever toner spillage) WILL OCCUR if the image drum is not properly packaged for 
shipping. 

Okidata charges a cleaning fee for ALL products sent in for service and received by Okidata with a "toner 
bomb" condition. 

If the shipping instructions are NOT followed, Okidata may levy a surcharge against the dealership. 

1 . Locate the original foam packaging or order replacement packaging from Okidata. Refer to Appendix B 
of this Service Handbook. 



2. Locate the originally supplied factory items. Refer to Getting Started in the Printer Handbook. 

3. Remove the image drum cartridge, with the toner cartridge installed. 

4. Place the image drum into a black plastic velostat bag (part of the original packaging). Refer to 
Appendix B. 

5. Install the image drum into the printer. 

6. Fold the opening of the black plastic bag twice. 

7. Tape the fold closed. 

8. Gently closed the LED holder and stacker cover. 

9. Pack the unit, using the materials from Step 1 . 

10. Pack the items listed below. 
Software Support Diskette(s) 
Printer Handbook 

Power Cord 

Paper Tray (with cover) 

■ 

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Wi/P^I^V%I/» Chapter 4 Failure Analysis 



4.1 OVERVIEW 

4.1.01 Introduction 

This section is used to isolate problems to the assembly level. Application problems and detection of faulty 
components on the printed circuit boards are NOT addressed. 

When troubleshooting a defective unit, follow these steps. 

1 . Refer to Section 4.3, which explains where to check for updates to the troubleshooting information. 

2. Section 4.4 contains tips on preventing problems. 

3. Section 4.5 shows samples of abnormal outputs. 

4. Section 4.6 provides tables of error messages. 

5. Section 4.7 contains the Repair Analysis Procedures (RAPs). Each RAP will ask you questions 

or require you to make observations. The answers to these questions and the results of your observations 
determine your next course of action. Use the RAP Index to identify which RAP should be used to resolve 
the problem with the machine. 

6. Section 4.8 provides the procedures for various printer tests. 

7. Section 4.2 lists methods for reporting problems. If you encounter a situation that is NOT 
addressed by the documentation in this kit, please report the problem to Okidata, using one of the 
methods listed. 

Refer to the Service Center Reference Guide for information on contacting Okidata. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
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Wi/f^l^V%I/» Chapter 4 Failure Analysis 



4.1.02 Printer Serial Number Identification 

To identify the revision level of a printer, record the serial number from the back of the printer. 

Refer to the following to decode the serial number. 

Example Printer Serial Number: 401 A01 54693 

Date of Manufacture Code 401 (4 = year. 01 = month) January, 1994 

Product Revision A 

Product Serial Number 0154693 

■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



| r %|/|p|ATA Service Guide OL810 

Wi/P^i^/%I/» Chapter 4 Failure Analysis 



Page: 131 



4.1.03 Firmware Revision Identification 

To identify the revision level and part number of the firmware, print the menu. 

Refer to Section 4.8 or Section 3.3 of this Service Handbook or the Printer Handbook. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
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Page: 132 

f r %l/|F|ATA Service Guide OL810 



Chapter 4 Failure Analysis 



4.2 REPORTING PROBLEMS 

4.2.01 General Information 

Okidata strives to provide accurate and detailed service information through its training materials. The 
Technical Training Group realizes that service technicians have valuable experience, knowledge, and 
opinions. Okidata strongly encourages you to report any problems you may encounter when using the 
materials of this training kit. Please be as specific and detailed as possible. Your comments, suggestions, 
and criticisms are used to update and revise training kits. 

You should reference the training materials when servicing Okidata products. Most problems can be 
solved by using the information provided in the training materials. If you encounter a situation that cannot 
be solved, please let Okidata know. 

Refer to the Service Center Reference Guide for information on contacting Okidata. 

4.2.02 Problem Lists 

Technicians frequently request a list of common problems specific to a product. Technical Training Kits 
are written before a product is shipped to customers. Therefore, such information is NOT available when a 
product is first released. 

However, Okidata wants to respond to these requests. Okilink II provides round-table discussions on 
technical problems. Errors and corrections in the training materials are listed in the Training Section of 
Okilink II. The Technical Service Bulletins (also known as Okidatas Monthly Mail) are available via Okilink 
II. Situations that are NOT addressed in the reference documentation, technical service bulletins, or 
round-tables may be reported to the Dealer Service and Support Engineers (Contact Technical Support) 
or the Technical Training Group. You will receive a response to your message within one business day. 

The information on Okilink II is the most accurate and up-to-date technical information available from 
Okidata. This is only possible with your assistance. By reporting your suggestions, concerns, and 
problems, Okidata can provide the best possible information. 

Your cooperation is greatly appreciated. Thank you for your help! 

4.2.03 Reporting Methods 

Okilink II 

You may use Okilink II to report your findings. Refer to the Service Center Reference Guide for 
information on using Okilink II. 

Course Critique 

Use the Course Critique to report any problems you find as you are completing the self-paced training. 
Fax Number 



If you wish to fax your response, please use the numbers listed in the Service Center Reference Guide. 

Mailing Address 

If you respond by mail, please use the appropriate address listed in the Service Center Reference Guide. 

Information Provided 

Please provide the following information when reporting problems. 

Okidata Dealer Number 

Technicians Name 

Company Name 

Companys Address (Street, City, State/Province, ZIP / Postal Code, Country) 

Telephone and Fax Numbers (with area / country access codes) 

Product Name 

Units Serial Number 

Firmware Revision Level 

Description of Problem 

Document Name (with page number or procedure) with error or problem. 

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4.3 TROUBLESHOOTING UPDATES 

4.3.01 General Information 

Okidata distributes updated troubleshooting information in three ways. 

Okilink II 

Faxable Facts 

Technical Service Bulletins 

4.3.02 Okilink II 

Okilink II is Okidatas Bulletin Board Service. This service is available to all Okidata Certified Service 
Technicians. Okilink II provides troubleshooting and service information. Technicians can download files, 
ask questions of Okidatas technical support personnel, and participate in round table discussions about 
Okidata products and services. Technical Service Bulletins, Recommended Spare Parts Lists, Printer 
Drivers, Product Specifications, and Service Training Information are also available. 

Refer to the Service Center Reference Guide for information on accessing Okilink II. 

4.3.03 Faxable Facts 

Okidatas Faxable Facts is an automated fax document retrieval system. It is maintained by Okidatas 
Customer Information Center. Answers to common questions about Okidata products are available 
through Faxable Facts. 

Refer to the Service Center Reference Guide for information on accessing Faxable Facts. 

4.3.04 Technical Service Bulletins 

Okidatas Technical Service Bulletins (TSBs) contain technical information developed after product 
release. Firmware updates, part number changes, and procedural changes are some of the subjects 
covered by these bulletins. The TSBs are distributed through Okilink II. 
Refer to the Service Center Reference Guide for information on accessing Okilink II. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



4.4 TROUBLESHOOTING TIPS 

4.4.01 Preliminary Checks 

1 . Is the product being operated under the proper ambient conditions? 

2. Is the paper being used made specifically for xerographic printing? 

3. Has the toner cartridge been replaced as recommended? 

4. Has the image drum cartridge been replaced as recommend? 

5. Is the toner cartridge properly installed? 

6. Is the image drum cartridge properly installed? 

7. Is an Okidata toner cartridge being used? 

8. Is an Okidata image drum being used? 

9. Is the firmware the latest (current) revision? 

1 0. Are the printer drivers being used correct for the printer? 

1 1 . Is the printer driver being used the latest (current) release? 

4.4.02 Tips for Preventing Image Problems 

1 . Do not let anything touch the surface of the image drum. 

2. NEVER expose the image drum to direct sunlight. 

3. Do not touch the fuser unit. Oil from the skin can cause uneven fusing temperature. 

4. Do not expose the image drum to light for more than 5 minutes. 

4.4.03 Problem Categories 

There are three categories of problems that you might encounter when servicing the printer. 

1 . Unacceptable or missing output. 

Refer to Section 4.5 of this Service Handbook. ^ 

Is there a sample resembling the problem? 



YES Refer to the specified RAP. 
NO Contact Technical Support. 

2. Error Message displayed on the operator panel. 
Is the Operator Lamp flashing? 

YES Refer to Section 4.6 of this Service Handbook. 
NO Refer to Section 4.6 of this Service Handbook. 

3. Printer does not initialize. 
Refer to RAP 01 . 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
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OKIDATA 



Page: 135 



Service Guide OL810 

Chapter 4 Failure Analysis 



4.5 ABNORMAL OUTPUT 
4.5.01 Output Samples 




Light Output 
Refer to RAP 15 



i . . r m,. m »■■■ • • ■■ r m . m » . rr ■■ 

■ ■ •n^-mjj J*jlkrT"l r V m TV~"^^. iHt' ■■ 

''■'WVUU'' ■ iili" 1 * ■■ — ■■■■ ■■ i 

im-FTFHTIIhh r!!!!~3 "'" , "" |J ' '■■■'■-*■ 


i - -|WefcKJS3qttsS^5ijjft3jC-'£ i . . 


■ ..j.r^!rfl , 3\.._ .j.nk _ i.i. j _) 


" " 



Dark Background 
Refer to RAP 16 



Blank Output 
Refer to RAP 17 



111 




Black Vertical Stripes / Streaks 
Refer to RAP 18 



Repetetive Marks 
Refer to RAP 19 




Blank Output (in spots) or 
White Vertical Stripes/ Streaks 
Refer to RAPs 20 and 21 




Black Output 
Refer to RAP 22 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 136 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 4 Failure Analysis 



4.6 FAULT ALARMS 

4.6.01 Using the Error Message Charts 

The LCD Error Message Charts provide the following information. 

• LCD Display Message 

• Description of the Error Message 

• Possible solution to the problem 

There are two groups of LCD Error Messages. 

• Section 4.6.02 
Operator Lamp flashes 

• Section 4.6.03 

Operator Lamp does not flash 

Make sure you refer to the appropriate section when troubleshooting. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 137 



OKIDATA 



Service Guide OL810 

Chapter 4 Failure Analysis 



4.6.02 Error Messages: Operator Lamp Flashes (Chart A) 



Category 


LCD Display Message 


Description 


Solution 


Printer Unit (PU) Errors 


ERROR PU CONTROL 


Overrun of the program 
on the Printer Unit (PU) 
side. 


Refer to RAP 06. 




ERROR PU EEPROM 


While writing to the 


Refer to RAP 06. 




WRITE 


EEPROM on the PU 
an error has occurred. 






ERROR PU EEPROM 


The EEPROM on the 


1 . Make sure the 




ERROR 


PU cannot be detected. 


EEPROM is properly 
installed. 








2. Replace the 








EEPROM. 




ERROR PU ROM/RAM 


An error has occurred 


Refer to RAP 06. 




CHECK 


during the PU 
ROM/RAM check. 






ERROR PU FAN 


The DC Fan has 


Refer to RAP 06. 




MOTOR 


stopped or the +38 vdc 
is not being supplied to 
the fan. 






ERROR PU FUSER 


The fuser temperature 


Refer to RAP 05. 




UNIT 


has not reached the 
prescribed setting. 




Interface Errors 


ERROR CU-PANELI/F 


A communication error 


Refer to RAP 07. 




TIMEOUT 


has occurred between 
the Control Unit (CU) 
and the Operator 
Panel. 






ERROR CU-PU l/F 


A communication error 


Refer to RAP 08. 




TIMEOUT 


has occurred between 
the Control Unit (CU) 
and the Printer Unit 
(PU). 







ERROR PU-OPTION 


After the PU sends 


1. Replace the engine 




TIMEOUT 


data no response is 
received from the 
Option. 


controller board. 








2. Replace the Option. 




ERROR CU-OPTION 


After the CU sends 


1. Replace the engine 




l/F TIMEOUT 


data no response is 
received from the 
Option. 


controller board. 








2. Replace the Option 




ERROR SERIAL 


An error has occurred 


1. Check the serial 




COMMUNICATION 


on the serial interface 


interface settings in the 






board. 


printer menu. 








2. Replace the serial 








interface board. 


Controller Errors 


ERROR OPTION RAM 


A RAM Write/Read 


Refer to RAP 10. 




CHECK 


compare error occurred 
on the optional RAM 
Board. 






ERROR CU RAM 


A RAM Write/Read 


Refer to RAP 10. 




CHECK 


compare error occurred 
on the RAM of the main 
controller board. 






ERROR CU FONT 


There is a checksum 


Replace the main 




ROM CHECK 


error in the resident 
font ROM of the main 
controller board. 


controller board. 




ERROR CU PROG. 


There is a checksum 


Refer to RAP 1 1 . 




ROM CHECK 


error in the Program 
ROM of the main 
controller board. 






ERROR 


An error has occurred 


Replace the main 




CONTROLLER 


on the main controller 


controller board. 




nnaaaaaa Where: 


board. 






nn<|>=<|>Vector 








Number aaaaaa = Error 








Address 






EEPROM Error 


ERROR EEPROM 


The printer was 


Press the RECOVER 




(The Service Lamp is 


powered OFF while 


switch. This will reset 




off) 


writing to the EEPROM. 


the EEPROM to factory 






EEPROM data was 


(default) settings. 






erased. 





Font Card Errors 


ERROR CARD 
FORMAT CHECK 


There is a checksum 
error on the font card. 


Refer to RAP 12. 




ERROR CARD 
REMOVED ON-LINE 


The font card was 
removed while the 
printer was ON-LINE. 


Power OFF the unit 
then power ON 




CARD NOT FOUND 


The CU could not 
detect the font card. 


Install the card. 


Cover Open 


COVER OPEN 


The upper cover is 
open. 


1. Close the upper 
cover. 








2. Replace the cover 
open switch. 








3. Replace the engine 
controller board. 


Jam Errors 


PAPER FEED JAM 
CHECK TRAY n 


A jam occurred in the 
paper tray area. The 
leading edge of the 
paper failed to reach 
the registration sensor 
within two seconds 
after hopping. 


Refer to RAP 02. 




PAPER INPUT JAM 
CHECK TRAY n 


The leading edge of the 
paper failed to reach 
the exit sensor within 
9.6 seconds after 
passing the registration 
sensor. 


Refer to RAP 03. 




PAPER EXIT JAM 
REMOVE THE PAPER 


The exit sensor 
remained ON longer 
than expected. 






ERROR PAPER SIZE 
CHECK TRAY n 


This error occurs when 
the actual paper length 
(detected by the 
registration sensor) 
differs from the paper 
length indicated by the 
tray identification 
switches. 


Refer to RAP 04. 


Connection Error 


Block Character 
displayed or missing 
display 


If the block character or 
missing display occurs 
for over 30 seconds 
there is an operator 
panel malfunction. 


Refer to RAP 01 . 


Paper Out 


PAPER OUT TRAY n 


The tray has run out of 
paper. 


1 . Load paper into the 
tray. 









2. Check the paper-end 
sensor for proper 
operation. 


Tray Requests 


EXECUTIVE TRAY n 
CASSETTE REQUEST 


Executive Tray is 
requested. 


Replace with the 
appropriate tray or 
Press the RESET 
Switch to force printing 
with existing tray. 




LETTER TRAY n 
CASSETTE REQUEST 


Letter Tray is 
requested. 






A4 TRAY n CASSETTE 
REQUEST 


A4 Tray is requested. 






A5 TRAY n CASSETTE 
REQUEST 


A5 Tray is requested. 






LEGAL TRAY n 
CASSETTE REQUEST 


Legal Tray is 
requested. 






B5 TRAY n CASSETTE 
REQUEST 


B5 Tray is requested. 






UNIVER (A6) TRAY 1 
CASSETTE REQUEST 


A6 Tray is requested. 






COM-10TRAY1 
ENVELOPE REQUEST 


Com-10 Tray is 
requested. 






MONARCH TRAY 1 
ENVELOPE REQUEST 


Monarch Tray is 
requested. 






DL TRAY 1 
ENVELOPE REQUEST 


DL Tray is requested. 






C5 TRAY 1 
ENVELOPE REQUEST 


C5 Tray is requested. 




Buffer Overflow 


ERROR RECEIVE 
BUFFER OVERFLOW 


The receive buffer 
received too much data 
to be printed on a page. 


1. Install more 
memory. 




ERROR PAGE 
BUFFER OVERFLOW 


The page buffer 
received too much data 
to be printed on a page. 


2. Reduce the amount 
of print data. 




ERROR DLL BUFFER 
OVERFLOW 


The DLL buffer 
received too much 
data. 


3. Reduce the number 
of DLL's or Macro's 
cataloged. 




ERROR MACRO 
BUFFER OVERFLOW 


The macro buffer 
received too much 
data. 


4. Refer to RAP 13. 





ERROR PRINT 


Page is too 


Modify the page 




OVERRUN 


complicated to be 


make-up (reduce the 






printed. 


number of data 
overlays). 



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Page: 138 



OKIDATA 



Service Guide OL810 

Chapter 4 Failure Analysis 



4.6.03 Error Messages: Operator Lamp Does Not Flash (Chart B) 



Category 


LCD Display Message 


Description 


Solution 


Requests for 
Manual Paper 
Loading 


EXECUTIVE MANUAL 
PAPER REQUEST 


The referenced 
paper/envelope is 
requested. 


Load the appropriate paper 
or envelope in the manual 
tray and press the FORM 
FEED Switch. 




LETTER MANUAL 
PAPER REQUEST 








LEGAL 13" MANUAL 
PAPER REQUEST 








LEGAL 14" MANUAL 
PAPER REQUEST 








A4 MANUAL PAPER 
REQUEST 








A5 MANUAL PAPER 
REQUEST 








A6 MANUAL PAPER 
REQUEST 








B5 MANUAL PAPER 
REQUEST 








MONARCH MANUAL 
ENVELOPE REQUEST 








COM-10 MANUAL 
ENVELOPE REQUEST 








DL MANUAL ENVELOPE 
REQUEST 








C5 MANUAL ENVELOPE 
REQUEST 






Reset Operation 
Error 


RESET TO SAVE 


A menu setting that 
affects printing was 
changed while data is 
in the print buffer. 


1 Press the ON-LINE 
Switch. The printer will go 
ON-LINE without affecting 
the current setting. 









2 Press the RECOVER 
Switch (for less than 2 
seconds). The printer will go 
OFF-LINE without affecting 
the current settings. 








3 Press the RESET Switch 
(for more than 2 seconds). 
The current setting is 
changed the unprinted data 
in the buffer is erased and 
the printer is placed 
ON-LINE. 


Daily Status 


DATA PRESENT .xx 


Received data is in the 
page buffer. 


Press the FORM FEED 
Switch in the OFF-LINE 
mode to force printing. 




ON-LINE .xx 


The printer is in the 
ON-LINE Mode. 


Normal Operation 




OFF-LINE .xx 


The printer is in the 
OFF-LINE Mode. 






PRINT FONTS 


The printer is printing 
all available fonts. 






DEMO PAGE PRINT 


The demonstration 
page is being printed. 






TONER LOW 


The toner cartridge is 
running low. 






PRINT MENU 


The menu is being 
printed. 






WARMING UP 


The thermal fuser has 
not yet reached the 
proper temperature. 






RESET 


The internal status of 
the printer has been 
reset. 






MENU RESET 


The printer menu will 
default to factory 
settings. 






CHANGE DRUM 


The image drum 
cartridge needs to be 
replaced 


Replace the image drum 
cartridge then power ON the 
power while pressing the 
RESET Switch. 





FUSER LIFE 


End of thermal fuser 


Replace the fuser unit then 






life reached (180,000 


reset the fuser counter (refer 






pages). 


to Section 3 of this Service 
Handbook). 



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Page: 139 

| r %l/ir|ATA Service Guide OL810 

Wi/f^l^V%I/» Chapter 4 Failure Analysis 



4.7 REPAIR ANALYSIS PROCEDURES (RAPs) 
4.7.01 Using the RAPs 

When using the Repair Analysis Procedures, follow these steps. 

1. Go to the RAP Index. 

2. Find the RAP which is associated with the printers problem. 

3. Go to the appropriate RAP. 

4. All RAPs begin with a START statement, followed by questions or another type of statement. 

■ 

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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 140 



Service Guide OL810 

Chapter 4 Failure Analysis 



4.7.02 RAP Index 



RAP Number 


Problem Description 


1 


Printer Does Not Initialize 


2 


Paper Feed Jam 


3 


Paper Jam 


4 


Paper Size Error 


5 


Fusing Problem 


6 


PU Error 


7 


Operator Panel Communication Error 


8 


Communication Error Between PU and CU 


9 


Loop Test Failure (RS232-C) 


10 


Resident/Optional RAM Failure 


11 


Program ROM Failure 


12 


Optional Font Card Failure 


13 


Receive Buffer Overflow 


14 


No Display on Operator Panel 


15 


Images are Light or Blurred 


16 


Dark Background Density 


17 


Blank Paper Is Output 


18 


Black Vertical Stripes 


19 


Repetitive Spaced Marks on Output 


20 


Random Missing Output 


21 


White Vertical Stripes 


22 


Black Page Is Output 


23 


Printing Incorrect Characters 



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| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



RAP 01 : Printer Does Not Initialize 

START 

Check the F1 (8 amp AC line fuse). Replace if necessary. 

Power OFF the unit, then power ON. Do the operator panel lamps light? 

YES Go to A 

NO Go to B 

A 

Do the fan and motor power ON? 

YES Does the fuser lamp power ON? 

NO Refer to RAP 05. 

YES The following are the most likely defective assemblies. Replace in the order listed, checking 
for proper operation before going to the next item listed. 

1 . Main control board PROM. 

2. Engine controller board. 
Is the problem resolved? 
YES End of procedure. 

NO Contact Technical Support. 

NO Remove the main control board. 

Do the fan and main motor turn on? 

YES Replace the main controller board. 

NO Measure the voltage between pin 1 4 and pin 1 5 of connector J6 on the engine controller board. 

Does it measure approximately +38 vdc? 

YES The following are the most likely defective assemblies. Replace in the order listed, checking for 
proper operation before going to the next item listed. 



1 - Cover Open Switch 

2 - Engine Controller Board 

3 - Power Supply Unit 
NO Go to C 

B 

Measure the voltage between pin 1 and pin 3 of connector (PU) on the main controller board. 

Does it measure +4.75vdc to +5.25vdc? 

YES The following are the most likely defective assemblies. Replace in the order listed, checking 
for proper operation before going to the next item listed. 

1 - Operator Panel 

2 - Engine Connection Board 

3 - Main Controller Board 

NO Remove the main controller board. 

Measure the voltage between pin 32 and pin 34 of connector J6 on the engine controller board. 

Does it measure +4.75vdc to +5.25vdc? 

YES Replace the main controller board. 

NO Remove the engine controller board. 

Measure the voltage between pin 32 and pin 34 of connector CN1 on the power supply unit. 

Does it measure +4.75vdc to +5.25vdc? 

NO Replace the power supply unit. 

YES Replace the possible defective assemblies in the order listed. 

1 - Engine Controller Board 

2 - Engine Connection Board 

3 - Operator Panel 
C 

Remove the AC power from the printer. 

Check F2 (2 amp, +38vdc circuit fuse) on the power supply unit. 

Is the fuse open? 



NO Replace the power supply unit. 

YES Replace the fuse (soldered). 

Install the engine controller board. 

Measure the resistance between pin 14 and pin 15 of connector J6 on the engine controller board. 

Is the resistance ohms? 

YES Replace the possible defective assemblies in the order listed. 

1 - Engine Controller Board 

2 - Main Motor 
3- Fan 

4 - Registration Motor 

NO Install remaining assemblies. Test printer. 

■ 

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Page: 142 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



RAP 02: Paper Feed Jam 

START 

When does the paper jam alarm occurs? 

As soon as the unit is powered ON. Go to A. 

After the printer attempts to print. Go to B. 

A 

Is paper jammed at the registration sensor? 

YES Remove the paper. 

NO Raise the stacker cover 

Lift the upper unit 

Block the registration sensor with a piece of paper 

Override the cover open switch. 

Is the jam error cleared? 

YES Remove the paper 

Replace all printer covers 

Check the registration sensor lever for normal operation. 

NO Replace the engine controller board. 

B 

Is the paper moving? 

YES Go to C. 

NO Go to D. 

C 

Is the paper reaching the registration sensor lever? 



YES Raise the stacker cover. 

Lift the upper unit 

Block the registration sensor with a piece of paper 

Override the cover open switch. 

Is the jam error cleared? 

YES Remove the paper. 

Replace all printer covers. 

Check the registration sensor lever for normal operation. 

NO Replace the engine controller board. 

NO Are there obstructions in the paper path? 

NO Replace the possible defective assemblies in the order listed. 

1 - Registration Motor 

2 - Paper Supply Unit 

3 - Engine Controller Board 
YES Remove the obstructions. 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 

D 

Measure the voltage at Connector J5 between pins 12, 13, 14, 15, 16 (registration Motor Drive) and 
pin 6 (Ground). 

Which voltage was measured? 

Ovdc 

Replace the engine controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

+38vdc 



Does the registration motor turn when attempting to feed paper? 
NO Replace the possible defective assemblies in the order listed. 

1 - Registration Motor 

2 - Paper Supply Unit 

3 - Engine Controller Board 

YES Replace the possible defective assemblies in the order listed. 

1 - Paper Supply Unit 

2 - Registration Motor 



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Page: 143 

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RAP 03: Paper Jam 

START 

When does the paper jam alarm occurs? 

As soon the unit is powered ON. Go to A. 

After the printer attempts to print. Go to B. 

A 

Is paper at the registration or exit sensor? 

YES Remove the paper. 

NO Remove the upper cover. 

Detach the main controller board. 

Measure the voltage at IC3 pin 37 of the engine controller board as you lift and lower the paper exit sensor 
lever. 

Does the voltage reading change between vdc and +5 vdc as you move the lever? 

NO Replace the engine controller board. 

YES Replace the possible defective assemblies in the order listed. 

1 - Engine Controller Board 

2 - Paper Exit Sensor Lever 

3 - Main Controller Board 
B 

Does the paper move beyond the registration sensor? 

NO Replace the possible defective assemblies in the order listed. 

1 - Engine Controller Board 

2 - Main Motor 

Is the problem resolved? 



YES End of procedure 

NO Contact Technical Support 

YES Is the paper reaching the paper exit sensor lever? 

YES Raise the stacker cover. 

Lift the upper unit. 

Block the registration sensor with a piece of paper. 

Override the cover open switch. 

Is the jam error cleared? 

YES Remove the paper 

Replace all printer covers. 

Check the paper exit sensor lever for normal operation. 

NO Replace the engine controller board. 

NO Are there obstructions in the paper path? 

NO Replace the possible defective assemblies in the order listed. 

1 - Registration Motor 

2 - Paper Supply Unit 

3 - Engine Controller Board 
YES Remove the obstructions. 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 



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RAP 04: Paper Size Error 

START 

Use the paper length specified on the paper tray. 

Raise the stacker cover 

Lift the upper unit. 

Check the registration sensor lever for normal operation. 

Does the registration sensor lever move freely? 

NO Replace the registration lever sensor. 

YES Does the paper exit sensor lever move freely? 

NO Replace the registration lever sensor. 

YES Are there obstructions in the paper path? 

NO Possible defective assemblies: 

1 - Tray detection switches on engine connection board 

2 - Engine Controller Board 

3 - Paper Supply Unit 

4 - Main Controller Board 
YES Remove the obstructions. 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 



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RAP 05: Fusing Problem 

START 

Look through the right side vent of the printer. Does the fuser lamp light? 

YES 

Measure the resistance between pins 1 and 2 of the cable connected to J2 on the engine 
controller board. 

Is the resistance approximately 100K Ohm? 

NO Replace the possible defective assemblies in the order listed. 

1 - Fuser Assembly (the thermistor is defective) 

2 - Engine Controller Board 

YES Replace the possible defective assemblies in the order listed. 

1 - Engine Controller Board 

2 - Main Controller Board 

3 - Fuser Assembly 
NO 

Open the upper cover. 

Lift the upper unit. Verify that the fusers AC connections are NOT recessed into the holder. 

Measure the resistance between the fusers AC connections. 

Is the resistance approximately zero ohms? 

NO Replace the fuser assembly. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

YES Check the voltage at J6 pin 37 on the engine controller board. 



Is the measurement approximately +5 vdc? 

NO Replace the engine controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

YES Is the power supply placed under the rear claws of the printer base? 

NO Install the power supply properly. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

YES Replace the power supply unit. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 



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Page: 146 

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RAP 06: PU Error 

START 

Replace the engine controller board. 

Has the problem been resolved? 

YES End of procedure 

NO Replace the main controller board. 

Has the problem been resolved? 

YES End of procedure. 

NO Contact Technical Support 



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RAP 07: Operator Panel Communication Error 

START 

Check the ribbon cable connections at the operator panel and J5 of the engine controller board. 

Is it properly connected? 

YES Go to A 

NO Connect it properly. 

Is the problem resolved? 

YES End of procedure 

NO Go to A 

A 

Replace the operator panel assembly. 

Is the problem resolved? 

YES End of procedure 

NO Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Replace the possible defective assemblies in the order listed. 

1 - Engine Connection Board 

2 - Engine Controller Board 



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RAP 08: Communication Error Between PU and CU 

START 

Check that connector (PU) on the main controller board is making good contact with J7 of the 
engine controller board. 

Are CN7 and J7 properly connected? 

NO Connect them properly. 

YES Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Replace the engine controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 



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Page: 149 

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RAP 09: Loop Test Failure (RS-232C) 

START 

Is the loop test connector installed? 

NO Install the loop test connector. 

Refer to Section 4.8 for a wiring diagram. 

Perform the Serial Loop Test. 

YES Replace the serial interface board (option). 

Is the problem resolved? 

YES End of procedure 

NO Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 



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OKIDATA 



Page: 150 

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RAP 10: Resident/Optional RAM Failure 

START 

Remove the optional RAM board(s). 

Is the problem resolved? 

NO Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

YES Reinstall the optional RAM board(s). 

Is the problem resolved? 

YES End of procedure 

NO Replace the optional RAM board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 



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RAP 11: Program ROM Failure 

START 

Replace the Program ROM on the main controller board. 

Is the problem resolved? 

YES End of Procedure. 

NO Remove the main controller board. 

Perform Engine Test - B. Refer to Section 4.8 of this Service Handbook. 

Does the test run properly? 

YES Go to A. 

NO Replace the engine controller board. 

Does the engine test run properly? 

NO Contact Technical Support 

YES Go to A. 

A 

Reinstall the main controller board. 

Perform the Continuous Print Test. Refer to Section 4.8 of this Service Handbook. 

Is the problem resolved? 

YES End of Procedure. 

NO Replace the main controller board. 

Is the problem resolved? 

YES End of procedure. 

NO Contact Technical Support 



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RAP 12: Optional Font Card Failure 

START 

Replace the font card. 

Is the problem resolved? 

YES End of procedure 

NO Make sure the font card board is firmly attached to the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 



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RAP 13: Receive Buffer Overflow 

START 

Determine the method of flow control being used by the Host and the printer (X-ON/X-OFF or 
READY BUSY). 

Is the same method being used at the Host and on the printer? 

NO Set the flow control via the Level 2 MENU. 

Is the problem resolved? 

YES End of procedure 

NO Go to the next step listed below. 

YES Replace the possible defective assemblies in the order listed. 

1 - Interface Cable configuration is incorrect 

2 - Interface Cable 

3 - Serial Interface Board 

4 - Main Controller Board 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 



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RAP 14: No Display on Operator Panel 

START 

Check the cable connections at the operator panel and J5 of the engine controller board. 

Is the problem resolved? 

YES End of procedure 

NO Measure the voltage between pin 1 and pin 3 at connector CN7 on the main controller board. 
Is the voltage between +4.75vdc and +5.25vdc? 

YES Go to RAP 07. 

NO Remove the main controller board. 

Measure the voltage between pin 13 and pin 14 at J6 on the engine controller board. 

Is the voltage between +4.75vdc and +5.25vdc? 

YES Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

NO Remove the cable from J5 on the engine controller board. 

Measure the voltage between pins 13 pin 14 at J6 on the engine controller board. 

Is the voltage between +4.75vdc and +5.25vdc? 

NO Replace the power supply unit. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

YES Replace the possible defective assemblies in the order listed. 

1 - Engine Connection Board 



2 - Operator Panel Assembly 

3 - Engine Controller Board 



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RAP 15: Images are Light or Blurred 

START 

Does the printer contain sufficient toner? 

NO Add toner. 

YES Is the paper recommended for use in a laser printer? 

NO Use paper recommended for a laser printer. 

YES Print the menu. 

Raise the stacker cover to stop the print cycle just as the bottom of the paper goes under the hopping 
roller. 

Lift the upper unit, remove the paper and look at the image drum. 

Is there a dark toner image on the drum? 

YES Replace the possible defective assemblies in the order listed. 

1 - Transfer Charger Assembly 

2 - High Voltage Power Supply 

3 - Engine Controller Board 
NO Clean the LED head. 

Is the problem resolved? 

YES End of procedure 

NO Replace the possible defective assemblies in the order listed. 

1 - Image Drum Cartridge 

2 - Engine Controller Board 

3 - High Voltage Power Supply 
Is the problem resolved? 
YES End of procedure 



NO Contact Technical Support 



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RAP 16: Dark Background Density 

START 

Clean the charge wire. 

Is the problem resolved? 

YES End of procedure 

NO Has the image drum been exposed to external light? 

YES Test the printer after 30 minutes. 

This will allow the drum surface enough time to recover its photoconductive properties. 

Is the problem resolved? 

NO Go to A. 

YES End of procedure 

NO Go to A. 

A 

Replace the fuser cleaner pad. 

Is the problem resolved? 

YES End of procedure 

NO Possible defective assemblies. Replace in the order listed. 

1 - Image Drum Cartridge 

2 - High Voltage Power Supply Unit 

3 - Engine Controller Board 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 



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RAP 17: Blank Paper is Output 

START 

Inspect the transfer wire. 

Is the transfer wire broken? 

YES Replace the transfer wire. 

Is the problem resolved? 

YES End of procedure 

NO Go to the next step listed below. 

NO Replace the high voltage power supply unit. 

Is the problem resolved? 

YES End of procedure 

NO Clean the ground contact of the image drum cartridge. 

Is the problem resolved? 

YES End of procedure 

NO Replace the image drum cartridge. 

Is the problem resolved? 

YES End of procedure 

NO Remove the main controller board. 

Perform Engine Test - B. Refer to Section 4.8 of this Service Handbook. 

Does the test run properly? 

YES Go to A 

NO Replace the engine controller board. 

Does the engine test run properly? 



NO Contact Technical Support 

YES Go to A 

A 

Reinstall the main controller board. 

Perform the Continuous Print Test. Refer to Section 4.8 of this Service Handbook 

Is the problem resolved? 

YES End of procedure 

NO Replace the main controller board. 

Is the problem resolved? 

YES End of procedure 

NO Replace the LED head. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 



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RAP 18: Black Vertical Stripes 

START 

Is the charge wire cleaning tab in the storage position? 

NO Move the tab to the right side of the image drum cartridge. 

Is the problem resolved? 

YES End of procedure 

NO Go to the next step listed below. 

YES Clean the charge wire. 

Is the problem resolved? 

YES End of procedure 

NO Possible defective assemblies are listed below. Replace in the order listed. 

1 - Image Drum Cartridge. Reset the drum counter 

2 - Engine Controller Board 

3 - LED Head 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support. 



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RAP 19: Evenly Spaced Marks on Output 

START 

Measure the distance between the marks. Find the distance below and perform the suggested 
correction. 

• 2.0 inches 

Clean / replace the registration rollers. 

• 2.27 inches 

Check / replace the image drum cartridge. 

■ 2.47 inches 

Clean / replace the fuser cleaner pad / fuser assembly. 

• 2.72 inches 

Clean / replace the pressure roller. 

• 3.7 inches 

Check / replace the image drum cartridge. 

■ 4.75 inches 

Check / replace the hopping roller. 



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RAP 20: Random Missing Output 

START 

Does the printer contain sufficient toner? 

NO Add toner. 

YES Is the paper recommended for use in a laser printer? 

NO Use paper recommended for a laser printer. 

YES Perform the Continuous Print Test. 

Raise the stacker cover to stop the print cycle just as the bottom of the paper goes under the hopping 
roller. 

Lift the upper unit, remove the paper and look at the image drum. 

Is there a complete toner image on the drum? 

YES Possible defective assemblies are listed below. Replace in the order shown. 

1 - Fuser Cleaner Pad 

2 - Clean the Fuser Roller (A dirty roller can cause uneven temperature.) 

3 - Transfer Charger Assembly 

4 - Engine Controller Board 

5 - High Voltage Power Supply 

6 - Fuser Assembly 

NO Clean the LED head. 

Is the problem resolved? 

YES End of procedure 

NO Possible defective assemblies (replace in the order shown) 

1 - Image Drum Cartridge 

2 - Engine Controller Board 



3 - High Voltage Power Supply 

4 - Main Controller Board 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 



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RAP 21 : White Vertical Stripes 

START 

Does the printer contain sufficient toner? 

NO Add toner. 

YES Is the paper recommended for use in a laser printer? 

NO Use paper recommended for a laser printer. 

YES Perform the Continuous Print Test. 

Raise the stacker cover to stop the print cycle just as the bottom of the paper goes under the 
hopping roller. 

Lift the upper unit, remove the paper and look at the image drum. 

Is there a complete toner image on the drum? 

YES Possible defective assemblies are listed below. Replace in the order shown. 

1 - Fuser Cleaner Pad 

2 - Fuser Roller (Uneven temperature can be caused by a dirty roller) 

3 - Transfer Charger Assembly 

4 - Engine Controller Board 

5 - High Voltage Power Supply 

6 - Fuser Assembly 

NO Clean the LED head. 

Is the problem resolved? 

YES End of procedure 

NO Possible defective assemblies (replace in the order shown) 

1 - Image Drum Cartridge 

2 - Engine Controller Board 



3 - High Voltage Power Supply 

4 - Main Controller Board 
Is the problem resolved? 
YES End of procedure 

NO Contact Technical Support 



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RAP 22: Black Page is Output 

START 

Examine the charge wire (you can see it through the top of the image drum cartridge). 

Is the charge wire broken? 

YES Replace the image drum cartridge. Reset the drum counter. Refer to Section 3.3 of this 
Service Handbook. 

NO Replace the high voltage power supply. 

Is the problem resolved? 

YES End of procedure 

NO Replace the LED Head. 

Is the problem resolved? 

YES End of procedure 

NO Replace the engine controller board. 

Is the problem resolved? 

YES End of procedure 

NO Replace the image drum cartridge. Reset the drum counter. Refer to Section 3.3 of this Service 
Handbook. 

Is the problem resolved? 

YES End of procedure 

NO Contact Technical Support 

■ 

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RAP 23: Printing Incorrect Characters 
NOTE: 

This RAP addresses problems occuring under the conditions listed below. 

1 . Parallel printing directly from DOS routines. 

2. OL810 printers with serial numbers below 205A0003274. Refer to Section 4.1 of this Service 
Handbook for information on serial number identification. 

START 

Verify proper interface cabling and proper operation of the computer interface board. 

Is the problem resolved? 

YES End of procedure. 

NO Replace the main control board. 

Is the problem resolved? 

YES End of procedure. 

NO Contact Technical Support. 



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4.8 PRINTER TESTS 
General Information 

This section covers the seven printer tests listed below. 

1 . Continuous Print (Rolling ASCII) 

2. Font Sample 

3. Hexadecimal Dump Mode 

4. Serial Interface Diagnostic 

5. Engine Test A 

6. Engine Test B 

7. Menu Print 

8. Demo Page Print 

The Rolling ASCII and Font Tests check print operations. 

The Hexadecimal Dump Mode checks the data transfer between the computer and printer. 

The Serial Interface Loopback Test checks the operation of the serial interface board. 

Engine Test A tests the print engine mechanism independently from the main controller board. 

Engine Test B accesses the engine firmware revision level, the modified page count, the fuser count, the 
drum count, and the actual page count independently from the main controller board. 

Menu Print provides a printed record of the program ROM revision level, the font ROM revision level, the 
amount of printer page memory, factory menu settings, and user selected menu settings. 

Demo Page print provides a sample of the capabilities of the printer. 



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4.8.01 Continuous Print (Rolling ASCII) Test 

General Information 

The rolling ASCII test prints a continuous printout of all 96 ASCII characters. The characters are 
shifted one position to the right on subsequent lines. 

Use this test to check the following items. 

1. Print Quality 

Across the entire length of a line 
Down the entire page 

2. Line Spacing 

3. Character Formation 

To perform the Rolling ASCII Test, follow these steps. 

1 . Press and hold the RECOVER/Reset switch as you power ON the printer. 

2. After approximately 10 seconds, the operator panel will display SYS. MAINTENANCE. 

3. Press the MENU1/Meni/2 switch repeatedly until the message CONTINUOUS PRINT is 
displayed on the operator panel. 

4. Press the ENTER/ Quiet switch to start the test. 

5. Press the ON-LINE switch to stop the test. The message CONTINUOUS PRINT BREAKED will 
be displayed on the operator panel. 

6. To return the printer to normal operation, power OFF the printer, then power ON. 
Sample 



- I "fS** '()*+»-. /01234567a* : ; <->7eABCOEFGHIJKIJ4NOPQilSTUVWXV£ [ \ ] - * a bed* rqh I j k 1 mnop 
! '"/$*t ' ( ) *+ j - ./0 I23T5 67B9; f -c-:> 7 ■ ABCDEFGH I JK UOfDPQRSTUVHX Y 2 [ \ ] " T a fc>c<J « Tq tl i j k 1 mnopq 
I VS** ' ( ) *t , -. /01»J4b67B9 : ; <^i 7 « ABCDEFGH T JK LHNQPQRSTUWX Y Z ( \ ] " _ '> ftbc fl ftf git i ] Jt lmiiopqr 
"««'[)*+p-./l»J3*56'*9: ?<-> 7#ftBCDErG(iIJKLHNOPflR3TUVW!iy Z [ \ ] -_ ' abcdo f 9 h 1 j fc 1 m nopqr s 
/$*S '{)*+,-■ /01"4Se?B9 1 f<=>7#ABCDEFGHIJKLHNOPQ.H5TUVWXY2 [ \ ) -_< abcdetgh i j k Lmnopqrat 

$*&'()*«-, - . /012345«7B9 : f <->7#aecdefghi JXijwc]FS3RSTUYWX¥2 1 v ) -_ l abcSef qh tlklmnopqt&tu 

* 1 ' H * * - - ■ /OH3456789 : ; <= > ?3 ABCDZFCH r JKLMNOPQRSTt^HXV Z [ \ 1 - - afrsdftf ghi jkltinapqrBtuv 
S '()*+,"-/ Q 1 2 3*5 67 a 9 :;<*<;> 7 S ABCDEFCHI JKIJtNOPQJISTUVWXYZ [ \ ] * "abcde f gh l j k Lmnopq c stu W 
'O't.-./OllHH?!!!; ; < -•> ? * ABCDEFCHI JKLMKOPqRSltTVWH Y Z [ \ ] ' " abtde f <jh i j k Imnopgratu vvx 
O ** , - - /01234 5676* : ; <- > 7 § A&CD EFCHIJKIJWOPQRSTUVlOLy E { \ } * " abed* f ghi j k LnnDpqr atuwxy 
>•+,-. /01334567a* : ; <-> 7 « ABCDEFGHI JKU«OPQR£TUVWXY 2 [ \ ] - T abCdof ghi jklmnopqr atuwxy 1 
*+,--/Oia345ft78*: f -;->7*JVBCDEF<iHIJKIJ!MOPQHSTUVWirye[\]-~4bCdflfqhIjklmnopqrstijwxyi< 
+ , - . / 01234567*5 : ; <*=>? (ABCDEFGHI JXLMNOFQRSrUWX V Z [ \ ] "_ T abcdef ghi jkl ranopqratUWXy Z{ [ 



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4.8.02 Font Sample Test 
General Information 

The Font Sample Test prints samples of the various fonts that can be accessed in the current emulation. 
To perform the Font Sample Test, follow these steps. 

1 . Power ON the printer and wait for the printer to go ON-LINE. 

2. Press the ON-LINE switch to take the printer OFF-LINE. 

3. Press the PRINT FONTS/Print Menu switch for 1 second. 

4. The DATA lamp will light, the READY lamp will flash, and the message PRINT FONTS will be 
displayed on the operator panel. 

5. Samples of the available fonts will be printed. 

6. When printing is completed, the printer will be OFF-LINE. Press the ON-LINE switch to place the 
printer ON-LINE. 

NOTE: 

The test prints the available fonts based on the selected printer emulation. 
Sample 



0L810 LED PAGE PRINTER 



HP L*»rJ*t 111 Knulition 



FI.-L 
ID. 


Fui L 
IB 


: .*.1 Km 


CHrliJ (y 


HP 


U III 


■tutd*nt 


Bltn*pf 


ioan 
-or, 

;332 




Cc4jrlc-r 
C«jt1ot 


lt*i. k 


-tin 
IOCS 




C«jrfMr 

C«jr1#r 


lt*[1C 


IOC* 




l« P-'-i:.- 




HP 


B/T Cartridge Cc 


■■putifc] 


I0« 




c.dli£ 


km 


ICU 




!»ll» 


la. a 


ICC* 

[til 
mi 




Dutch 
Dutch 
Dutch 


III Lie 


[S12 

1*1 J 

Ifili 




Clutch 

Dutch 
Ouich 


■aid 
Hi Lit 


roi5 

1 014 
[017 




Dutch 
Dutch 

DuTCT. 


dole) 
unit 


[014 




luldl 




[01 » 




butdi 




J0?D 




n-jlch 





Pltm Pnlnc U ol 

«») SL« i^L 



ITmt MMHIU 



m.rrj u.o *o ABCDEFghi}* lot 2.14 /$tS4 [\J"_ { 
i0.ro 12.0 40 MCDErqhi-jkl 01134. #**** t\l _ { 

io. co 12.0 +i) ABCDErc/hijArlOl^JJ #S1&£ fU* C 



}- 
}- 

.)- 



12 .CO 
12.00 

It. 66 



PTDP<«1 

propMt 
smpiij 

*<■*.<■> 

CHP(]) 

:oic<a> 

preiecp) 

proplFI 
P*opHS.> 

pr«ji[P> 



io.o *o nBC[>i;rsJ'iJKioi!H Jj\*a j\r i 

10.0 tD ABCDITVllljKHjlJl* tint i\\'~_ I 

10. tt ASCOrrcjhijArlOJJJ* fe'l£t J"|J""_ ( 



, - kttOv i 
\~ UioO 1 

1- A£700 - 



0.5 HO *ICOEFiM|ki012!4 JlrtUS rS)*_ <l>- UlSu *»I50 t*J^( 4,uKo 



14.4 I 

1L,1 it 



ABCDEF|jWlW01234#$%&@[\r f 
ABCOEF^hljkl01234 #S%&@ [\J\_ {[ 



HP I,J III **ald«at OCfclktolB Pants 



11125 


CE T'r»» 






prgp dc*Lt 


win 


CO Tim 


(old 




pran icil* 


IMT 


CC TIOH 


ItiHc 




pfep sctAr 


id» 


Ct TiMI 


ttlllE 


H.c 


pnm ioLe 


:=m 


Uninri 






prep ic*L« 


Mlu 


Lhlw* 


Bold 




prop irtir 


1331 


in.v»-i 


trillt 




pcaci tc*l 4 


mi 


UllWI 


[t#[lc 


lull, 


proa tc*!r 



10.0 1 ABCDEFfthijkLCHH* #j!]toc($ [\]'_ i _ \\}~ 

10.0 1 AHCD£F E hL]k!0ll3* #JflKt(^; [M"_ fl>- 

iB.o l ^JtViiE^jjJtJtiJi.H >J'jWGi' /W_._ [|)- 

10,0 I ABCDEFgtiiilelDlJM #t« 4^: M " _ 1 1 ) - 

■D.o i ABCI>Er^mLl01JX#3**@h] -_( | J- 

■o.o i AHcnF.Ffri&lQftU *!%&<<£ W _{\}^ 

-.0.0 40 ABCDEFahijll(H2%4 «*c5i!r |V,"_ <|)* AGlftU icul 

loo *a ABCuErgnjitioun wms |ir_ qi- Atroo »n 

io,o 40 AKCl>Et--gki)kldi2J4 *l<4&(gL- f\j"_ {|}- A £!<■>£ HI 

S* 1 A8CDCF|hijkl01.J3* »(**£■ |V -._ ||1- 

s.o 1 Anrap^ u u(iiH*#]*ArtN A _m- 

O.O 40 ABCrarifiljiLlOaiii #$M« [t]-_ <|>- Jk*IOrtti«*»JS*t/.ii.d 



S u ^^01231 #s%&@ [\] A _ { | } - A£I00 a 

?n ^«f,Hii<ioi«;i4 #$%&& [\T { I } " AKlOC 

so ^.wioim »$%&@ /ir„ /"| i - /Ifl^C/ ci 

iP ^rr,r.jK»l234 #*%&@ [\]~_ { |) ~ ASOU 

so -c^MjtaOl23« #*%&@ [\J A { | } - AHOlJ 

iii «„[r#u*>oi234 #$%&<§> f\T_ {\}~ AEtOC 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 167 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



4.8.03 Hexadecimal Dump Mode 

General Information 

The hexadecimal dump mode allows you to view the data sent from a computer to the printer. When the 
printer is in hexadecimal dump mode, all data received (both printable characters and control codes) will 
be printed in both hexadecimal and ASCII format. 

NOTE: 

In the ASCII format, all non-printable characters will be represented by a period. 

Example 

Below is a line of BASIC code. 

LPRINT CHR$(27) ;"0";CHR$(30);"This is an example of hexadecimal dump." 

Below is the same line as it would appear in Hexadecimal Dump Mode. 

1 B 30 1 E 54 68 69 73 20 69 73 20 61 6E 20 65 78 .0. This is an ex 

61 6D 70 6C 65 20 66 20 61 20 68 65 78 61 64 ample of a hexad 

65 63 69 6D 61 6C 20 64 75 6D 70 2E 0D 0A ecimal dump 

Procedure 

Follow these steps to engage the Hexadecimal Dump Mode. 

1 . Make sure the printer is connected to a computer. 

2. Verify that paper is loaded. 

3. Verify that the image drum and toner cartridge are correctly installed. 

4. Power OFF the printer. 

5. Press and hold MENU 1 / Menu 2 while powering on the printer. 

6. Hold the switches until the operator panel displays the line shown below. 
MAINTENANCE MODE 

7. Press MENU 1 / Menu 2 twice. 



8. Press ENTER /QUIET. 

9. The printer is ready to receive data in the Hexadecimal Dump Mode. 

1 0. Send data to the printer from the computer. 

1 1 . To exit Hexadecimal Dump Mode, power OFF the printer. 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 168 

f r %l/|F|ATA Service Guide OL810 



Chapter 4 Failure Analysis 



4.8.04 Serial Interface Loopback Test 

NOTE: 

In order to run this test, the serial interface board must be installed with a serial loopback test connector 
attached to it. 

The Serial Interface Diagnostic is used to verify the proper operation of the serial port and its associated 
circuitry. 

To perform the Serial Interface Diagnostic, follow these steps. 

1 . Place a DB-25P Loopback Test Connector on the serial port (refer to the diagram). 

2. Select the serial interface in MENU 1 . 

3. Press and hold the RECOVER/ Reset switch as you power ON the printer. 

4. After approximately 10 seconds, the operator panel will display SYS. MAINTENANCE. 

5. Press the MENU1/Menu2 switch repeatedly until the message LOOP TEST is displayed on 
the operator panel. 

6. Press the ENTER/ Quiet switch to start the test. 

7. To return the printer to normal operation, power OFF the printer, then power ON. 

NOTE: 

The number of times the test passes will be displayed in the lower right corner of the operator 

panel display. If this diagnostic fails, LOOP TEST FAILURE will be displayed. Refer to RAP 09 if the test 

fails. 

Loopback Connector Configuration 

1 . Jumper the following pins together. 
Pin 2 to Pin 3 
Pin 4 to Pin 5 
Pin 8 to Pin 11 
Pin 6 to Pin 20 



TD 
RD 
RTS 
CTS 
CD 
SSD 
DTR 
DSR 



8 

11 
20 



Serial Cable Information 

The information in this section will help you make a serial cable to connect between the printer and 
computer. 

Refer to the computer documentation to determine the cable requirements on the computers end. 

The printer has a 25 pin, DB-25S receptacle. 

The printer has the following cable requirements. 

■ Shielded, RS-232C cable (Beldon or equivalent), twisted pair conductors. 

■ UL and CSA approved 

■ No more than 50 feet long 

■ Cannon DB-25P plug (or equivalent) with 25 pins 

■ Cannon DB-C2-J9 (or equivalent) connector shell 
Serial Interface Signal Requirements 



Pin 


Signal 


Symbol 


Direction 


Description 


1 


Protective Ground 


PG 


Ground 


Connected to the printer frame 


2 


Transmit Data 


TD 


From Printer 


Serial data transmitted to the 
system 


3 


Receive Data 


RD 


To Printer 


Serial data received by the printer 


4 


Request to Send 


RTS 


From Printer 


Always set to low (mark) 


5 


Not Used 








6 


Data Set Ready 


DSR 


To Printer 


Indicates that data can be sent 



7 


Signal Ground 


SG 


Ground 


Ground 


8 to 10 


Not Used 








11 


Supervisory Send 
Data 


SSD 


From Printer 


Indicates that the printer is not 
ready to receive data 


12 to 19 


Not Used 








20 


Data Terminal 
Ready 


DTR 


From Printer 


Indicates that the printer is not 
ready to receive data 


21 to 25 


Not Used 









Commonly Used Serial Cable Configurations 



IBM 25-Pin Cable Configuration 



Computer 






Printer 


PG 


1 


1 


PG 


TD 


2 


3 


RD 


RD 


3 


2 


TD 


CTS 


5 


11 


SSD 


DSP, 


6 


20 


DTR 






Le 


DSR 


SG 


7 


7 


SG 






4 


RTS 






Ls 


CTS 



IBM 9-Pin Cable Configuration 



Computer 






Printer 


RD 


2 


2 


TD 


TD 


3 


3 


RD 


SG 


5 


7 


SG 


DSR 


6 


20 


DTR 
DSR 




6 


CTS 


8 


11 


SSD 






4 
I 


RTS 






Es 


CTS 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 169 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



4.8.05 Engine Test A 

The Engine Test A provides the technician with a method for testing the print engine mechanism 
independent of the main controller board. 

To perform Engine Test A, follow these steps. 

1 . Remove the upper cover. 

2. Override the cover interlock switch and power ON the printer. 

3. Allow approximately one minute for the printer to initialize, then press switch SW1 on the engine 
controller board for one second. 

4. The printer will start printing repetitive horizontal lines. 

5. To stop printing, press switch SW1 on the engine controller board. 



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Page: 170 



OKIDATA 



Service Guide OL810 

Chapter 4 Failure Analysis 



4.8.06 Engine Test B 

The Engine Test B provides the technician with a method for printing the following information, 
independent of the main controller board. 

• Engine Firmware Revision Level 
■ Modified Page Count 

• Fuser Count 

• Drum Count 

• Actual Page Count 

To perform Engine Test B, follow these steps. 

1 . Remove the upper cover. 

2. Override the cover interlock switch and power ON the printer. 

3. Allow approximately one minute for the printer to initialize, then press switch SW1 on the engine 
controller board for three seconds. 

4. The printer will start printing the requested data. 

5. To stop printing, press switch SW1 on the engine controller board. 
Sample 



■jea. 
wb, 

V99. 

vea. 

get. 
uea. 
wea. 

■,*a. 

'JOB. 
UBB. 
UBB. 
J88. 

ASB, 
'JBB, 

mea. 
wea. 
»e. 
uw, 

uea. 

una, 
yea. 

'*, 

W». 

I irafi 



bt neeais* 
B? nw*i*a 

tf r fMPB I 51 

a? nwais* 
9? neeais* 
bt nseeisi 
97 Mweis* 

37 H9M1S4 

a? H0M1S4 

37 H8eBl54 
B7 HBWIW 
37 ha0«i54 

B7 nateisi 
bt new 154 

B7 BBW1H 
BT IH0B1S4 

bt naaei54 
BT neeaiM 

87 WHIM 

e; newts* 
B7 new 194 
bt naeeiM 
bt naeei54 

ST ttBMlS4 
BT WM134 



FUSPWBMTS 

Pu9EReaeeT3 

FUSERBBOB72 
FUS£f»B«72 

FUSEfueeeTe 

FU9EMB0B?$ 
FUSEFWBWTE 
FLSefl8«87£ 
FLSCnwWTE 
FU3EFt»»72 
FUSEB 99(1972 
FU&RWH72 
FIKCBBBW72 
FU^RHaQTE 

F<js.-6fwe*w7i- 

FUSEFt«HT2 

FusEJWuaeis 
fuser»wts 

FJ^ERB8«T1 
FUSERBBBBT2 
FUSERBBOB72 

FLBEnaweTi 

FLISERWWT? 

FJBBRBWB7S 
-UEfc=»BB872 
FUSEABHB7Z 



WUHe08154 

rpjut«9ei34 
cRUMHaen4 

BRWrtBeG154 
DF*II«W154 

MVfweei^4 

PWUMB8B134 

Pfluneeei54 

PHUM8*l , :4 

0flur««iS4 

t>RUW«134 
PFaJM68ei34 

DRUheeeisi 
CRuMaeeiM 

CP*Jf««lH 

tnw*»i54 

DFUrtflWt54 
DRUHKBl^t 

DHuneaeiM 

0F*jrie»l54 
0fW*134 

DflUWBeBlB* 



n-T Mnm,ci rnrrnin ■ m uibMAid, 



PweneBeBTi 
pwtmBBBTa 
pflpEfteeeB7i 

PflPER0MaT2 
PflPER8fte9T2 

pppEiweeBTi 

FflP£F*W8T2 
PWERWBBTS 

pfipewwe?* 

PF*aWW672 
P#EHBMB72 
PWERBBHBTI 
PHFLRO00BT2 

pp*eiweaeT2 
PP)PERBeee72 
PftPEReeeaT-2 

PflFERGBW72 

PF*£ftBeao72 

PflPBMBW72 

pflp&«*aT2 
pwEPeweTi 

PSPEPWW72 
PRPB%BBBBT2 
PFPEfcaOWTS 
PflPERWWTS 
PflPCBCfl(!a72 




Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 171 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



4.8.07 Menu Print 

The Menu Print can provide the following information to the service technician. 

• Program ROM Revision Level (CU and PU) 

• Font ROM Revision Level 

• Amount of Printer Page Memory 

• Factory Menu Settings 

• User Selected Menu Settings 

To print the Menu, follow these steps. 

1 . Power ON the printer and wait for the printer to go ON-LINE. 

2. Press the ON-LINE switch to take the printer OFF-LINE. 

3. Press the PRINT FONTS/ Print Menu switch for 3 seconds. 

4. The DATA lamp will turn ON, the READY lamp will flash and the message MENU PRINT will be 
displayed on the operator panel. 

5. The Menu will print. 

6. When printing is completed, the printer will be OFF-LINE. Press the ON-LINE switch to place the printer 
ON-LINE. 

Sample 



OLS10 LED PAGE PRINTER 



Frogru RON i cu 01. »2 


AOQ W DO. D7 


four 


00. 1* 


Fag* Kmory t 4M Bjtei 


InataUad 






Oparato* Panal H*DU 


Bat ting ■ 






Laval- 1 








rnntnii 


Factory 




User 


EMULATION 


HP LJ III 




HP JUT III 


COPIES 


1 




1 


PAPSR FEED 


TRAY1 




TRAYl 


AlTTO TRAY SWITCH 


OFF 




OFF 


TMKl PAPER SUES 


UNIVERSAL' 


>A4 


UNIVWUAL-A4 


TRAY 2 PAPER SI3E 


UNIVERSAL^ 


*4 


UNIVERSAL^** 


wp TjiftwjAt TTT lh u 1-*'J'» 






ORIENTATION 


PORTRAIT 




PORTRAIT 


PONT SOURCE 


RESIDENT 




RESIDENT 


FONT No. 


I0t>0 




1600 


SYMBOL SET 


Roman- & 




Xoaan-4 


HP CARTS IE OS 


NONE 




HONE 


LINES PER PAGE 


60 LINES 




60 LIKES 


A4 PRINT WIDTH 


76 COLUMN 




IB count* 


Lwral-2 








SMOOTHING 


ON 




ON 


PAGE PROMOTION 


ojr 




OFF 


HOST INTERFACE 


PARALLEL 




■S332C 


PLOW CONTROL 


OTR HI POLARITY 


HER HI POLARITY 


BAWD RATE 


9 600 BAUD 




19300 BAUD 


T>ftTA BIT8 


S BITS 




7 BITS 


PARITY 


NQHB 




EVEN 


MIN.BUSY TIME 


2 0m SEC 




300msec 


DARKNESS 







+3 


TIME TO QUIET 


S MINUTES 




« nnrareB 


AUTO CONTINUE 


or? 




OFF 


LEGAL LINGTH 


14 IKCK 




14 INCH 


language: 


FNGLISH 




ENGLISH 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 172 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter 4 Failure Analysis 



4.8.08 Demo Page Print 
NOTE: 

Before you select this test, set the PAGE PROTECTION setting in MENU 2 to LETTER. 
The Demo Page provides a sample of the capabilities of the printer. 
To perform the Demo Page Print, follow these steps. 

1 . Power ON the printer and wait for the printer to go ON-LINE. 

2. Press the ON-LINE switch to take the printer OFF-LINE. 

3. Press the NEXT +/ Demo switch for 3 seconds. 

4. The DATA lamp will turn ON, the READY lamp will flash and the message DEMO PAGE PRINT 
will be displayed on the operator panel. 

5. The Demo Page will be printed in approximately one minute. 

6. When printing is completed, the printer will be OFF-LINE. Press the ON-LINE switch to place the printer 
ON-LINE. 

Sample 



o\»io im 



& 



® 



The OLSlO allows you to print your 
business documents quicltly and quietly. 
Since tlte OUM his full HP LaserJet* 111 
compatibility, you have instant access u> a 
very Large base of business applications. 
Primer resident scalable fonts support your 
applications. Bitmap fonts including HP A, 
B, C, F, L, Y and SI aie standard. 



Sffif 


13 HP LaiifJet III Si font* 




by AGFA Compuo/aphlc 


sSpL 


CG Times 




rvj TSiftftj WaWc 




CG Times Bold 




CG Timet Bold italic 




Univer** 


JrfB^tk 


Untvers Italic 


vvrttf 


UnJvwr* Bote) 


43(D : 


Ursiwfft BoU ttatk 


Uninrt CandtntHl 




Mmwrj Mr CtodtM&t 




UniiKU ttU Cnlnnii 




flW*w» t*HH*iitC****mi 




ITC Zap! Dingbats* <?i*-« t> 



Fom ejnda wrtji CG Intel liftmt* fonis, and 
tbc AGFA Counpugraphic Typeface Library, 
ensure that your typeface needs are met. 








Oki Smoothing Technology provides on-ihe-fly 

edge smoothing io reduce the jagged stairstep 
effect . The output quality is greatly improved. 



25% 



20% 



33^ 




10% 



5 2% 



OKI SMOOTHING TECHNOLOGY 
VICTOR GRAPHICS 

TheOUJlO is equipped with standard fonts 
which offer more than HP T jserJet TIL The 
Univers Condensed font provides improved 
Spreadsheet capabilities. The classic ITC 
Zapf Dingbats adds the power lo ^'i* - fc A. 
Expandability options include up to 4 MB 
memory, a second 200 sheet paper bay, 
scalable and bitmap font cards, a serial 
interface and Adobe's Pnsi$cnpt*PDL. 
The OLS10 goes beyond HP LaserJet III. 
The OLS10 gives you the clear ad vantage 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 173 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.1 OVERVIEW 

A. 1.01 General Information 

This section describes the characteristics of the printed circuit boards in the printer. 

The areas listed below are covered. 

Firmware 

Fuses 

Jumpers 

Sensors 

Switches 

Test Points 

Where an item is not applicable, the word AOVEwill be listed. 

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 174 



Service Guide OL810 

Chapter A Board Diagrams 



A.2 INDEX TO CHARTS 



Main Controller Board 


OLMA 


A.2.01 


Engine Controller Board 


LLAT 


A.2.02 


Operator Panel Board 


LLJB-2 


A.2.03 


Engine Connection Board 


LLCC 


A.2.04 


Second Font Card Board 


OLCA 


A.2.05 


Power Connection Board 


LLID 


A.2. 06 


Power Supply Unit 


N/A 


A.2. 07 


RS232-C Interface Board Option 


OLSA 


A.2. 08 


Memory Boards Options 


OLRA or OLRA-2 


A.2.09 


Second Paper Feed Unit 
Controller Option 


LLFC 


A.2.10 


Second Paper Feed Unit 
Connection Option 


LLIG 


A.2. 11 


Second Paper Feed Unit 
Connection Option 


LLIF 


A.2.12 



Serial Interface Board 
(QLSA) 

Memory Boards 
(OLRA andOLRA-2) 



Second Paper Supply Unit 



Comra kT 

'ILf-'C) 




Engine Connection Board Opergtor pane| Boafd 



Power Connection Board 
<LLID) 



Power Supply Unit 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.01 Main Controller Board (OLMA) 
Firmware 

02A 

Font ROM: contains scalable/bit-mapped font data. 

03A 

Font ROM: contains scalable/bit-mapped font data. 

04A 

4 Mbyte, Program ROM 

Contains emulation, interface control and error recognition programs. 

05A 

4 Mbyte, Program ROM 

Contains emulation, interface control and error recognition programs. 

10E 

EEPROM (soldered in at this time): contains protocol/interface settings. 

Fuses 

F1 : 1 amp fuse - (micro-fuse, soldered on the board) protects the +5vdc circuit. 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

NONE 

Test Points 



Page: 175 



CN1 Pin 18: + 5vdc 
CN6Pin30: + 12vdc 
CN6Pin 15:-12vdc 

F1 



viw 



i cm is 



JO 1 



m 



CNV 



/bbi 



fEA 



03A 



04A 05A 



it> 



CH6 



I . 



□ 

IDE 



1 CHS 4a 



B --Ji. 

<-■ m, 

ifi — tm7 — n i 

LU UJ 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 176 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.02 Engine Controller Board (LLAT) 
Firmware 

IC2 - EEPROM: contains printer engine settings. 

The print engine control program is masked to the microprocessor (IC1). 

Fuses 

NONE 

Jumpers 

NONE 

Sensors 

PT1 - Toner End Sensor 

PT2 - Resist Sensor 

PS1 - Outlet Sensor 

Switches 

SW1 : used to initialize the Engine Test. Also used during printer adjustments. 

Test Points 

J6 Pins 13,31,32: + 5 vdc 

J6 Pin 12: + 12 vdc 

J6 Pin 11: -12 vdc 

J6 Pin 15: + 38 vdc 



g 



«l 



16 



ai» 



30 



U* 



i a i* 



PT1 



PT3 



1 


it 


1 > 


_h ..„- 


40 



Jo 





IC1 




IC2 




i ROM ] 














J 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 177 



OKIDATA 



Service Guide OL810 

Chapter A Board Diagrams 



A.2.03 Operator Panel Board (LLJB-2) 
Firmware 

NONE 
Fuses 

NONE 
Jumpers 

NONE 
Sensors 

NONE 
Switches 

SW1 - Next + / Demo 

SW2 - LAST - / Smoothing 

SW3 - ENTER / Quiet 

SW4 - MENU 1 / Menu2 

SW5 - ON-LINE 

SW6 - FORM FEED / Tray Select 

SW7 - PRINT FONTS / Print Menu 

SW8 - RECOVER / Reset 

Test Points 

NONE 



D4 

o 



\l 



D3 
O 



D2 

o 



SW4 



SW3 



SW7 





SW2 



01 






i i- 

J 



swt 



B BM 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 178 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.04 Engine Connection Board (LLCC) 
Firmware 

NONE 
Fuses 

NONE 
Jumpers 

NONE 
Sensors 

SEN1 : Paper-end sensor 

Switches 

SW1 ,SW2 and SW3: tray size detection switches 

Test Points 

NONE 



To the Engine Controller Board 
(LLAT) 



To the Operator Panel Board 
(LLJB-2) 




5EN 



SW1 
£0sW2 

yhw3 



J 




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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 179 



OKIDATA 



Service Guide OL810 

Chapter A Board Diagrams 



A.2.05 Second Font Card Board (OLCA) 

Firmware 

NONE 

Fuses 

NONE 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

NONE 

Test Points 

NONE 



CN1 







CN2 














1 47 

2 48 




i i 



50 r* 



25 l n== 



26 
1 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 180 



OKIDATA 



Service Guide OL810 

Chapter A Board Diagrams 



A.2.06 Power Connection Board (LLID) 

Firmware 

NONE 

Fuses 

NONE 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

NONE 

Test Points 

NONE 



\ 



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Page: 181 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.07 Power Supply Unit 
Firmware 

NONE 
Fuses 

F2: 125 Volt 2 amp fuse 

Micro-fuse, soldered on the board 

Protects the + 38 vdc circuit. 

F1 : 250Volt 8 amp - AC line fuse 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

SW1 : Power switch 

SW2: Cover open switch 

If open, disables both the + 38 vdc and the high voltage circuit 

Test Points 

CN1 Pin 15: + 38 vdc 

CN1 Pins 13,31 ,32: + 5 vdc 

CN1 Pin 12: + 12 vdc 

CN1 Pin 11: -12 vdc 

CN1 Pin 37: (HEAT signal) received from the engine controller board. 

When this signal is approximately +3.25 vdc, the power supply unit will supply AC voltage to the 
fuser lamp. 




5 VI 



f=w 



3 



CN2 

(to: SV2) 



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Page: 182 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.08 RS232-C Interface Board (OLSA) Option 
Firmware 

NONE 
Fuses 

NONE 
Jumpers 

NONE 
Sensors 

NONE 
Switches 

NONE 
Test Points 

CN3Pin30:+12vdc 
CN3Pin 15:-12vdc 
CN3 Pins 12,13,14: +5vdc 



E 



i 1 



25 13 



CN1 



14 1 



15" 




CM3 

i 




1 





30 



16 



C3 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 183 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.09 Memory Boards (OLRA and OLRA-2) Options 
NOTES: 

The memory boards are sometimes referred to as RAM expansion boards. 

Installing these boards increases the amount of available RAM. 

The printer contains 1 megabyte of RAM, standard. 

Two optional memory boards can be installed at the same time in the OL810. 

The OLRA memory board increases available RAM by 2 megabytes. 

The OLRA-2 memory board increases available RAM by 1 megabyte. 

Total installed RAM cannot exceed 5 Mbyte 

Standard Memory (1 Mbyte)Optional OLRA-2 (1 Mbyte)Optional OLRA-2 (1 Mbyte)Optional OLRA 
(2 Mbyte)Optional OLRA (2 Mbyte)Total Memory 

Installed 1 Mbyte Installed Installed 2 Mbyte Installed Installed Installed 3 Mbyte Installed Installed 
3 Mbyte Installed Installed Installed 4 Mbyte Installed Installed Installed 5 Mbyte 

Firmware 

NONE 

Fuses 

NONE 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

NONE 

Test Points 



NONE 



1 t_. 



CN1 



"~j40 

_l 39 



40 
39 



a 
a 



o 

□ 



2 
1 



CN2 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Service Guide OL810 

Chapter A Board Diagrams 



Page: 184 



A.2.10 Second Paper Feed Unit Controller (LLFC) Option 
Firmware 

NONE 
Fuses 

F1 : 125 Volt 1 amp fuse Micro-fuse, soldered on the board Protects the +38vdc circuit. 

Jumpers 

NONE 

Sensors 

SEN-1 : Paper-end sensor for second paper tray 

Switches 

SW1 , SW2 and SW3: Tray size detection switches 

Test Points 

NONE 



FT 






SEX-1 



• ■ („ 




\ 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 185 



OKIDATA 



Service Guide OL810 

Chapter A Board Diagrams 



A.2.11 Second Paper Feed Unit Connection Board (LLIG) Option 

Firmware 

NONE 

Fuses 

NONE 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

NONE 

Test Points 

NONE 



^ . 

' 

- 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 186 

| r %|/|p|ATA Service Guide OL810 

Wi/P^I^V%I/» Chapter A Board Diagrams 



A.2.12 Second Paper Feed Unit Connection Board (LLIF) Option 

Firmware 

NONE 

Fuses 

NONE 

Jumpers 

NONE 

Sensors 

NONE 

Switches 

NONE 

Test Points 

NONE 




Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 187 

Ai/IRATA' Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.1 OVERVIEW 

B.1.01 General Information 

This appendix will assist you in identifying the assemblies and parts of the product. 

Use Section Four (Failure Analysis) to determine the defective part(s). 

Locate the part and its part number in this section. 

Appendix B is cross-referenced to Section Three (Maintenance). 

Format 

The format for this appendix is a series of tables with diagrams. The tables contain the item 
reference number, the Okidata and Oki-Japan (Oki-J) part numbers, the part description, a comments 
section, and the disassembly procedure. 



Item 


Okidata P/M 
Oki-J Pitt 


Description 


Comments 
Refer to B.1 .02 


Disassembly 
Procedure 



Items with the comments RSPL (Recommended Spare Parts List), Consumable, Document, or Option are 
available from Okidata. Items without these comments are usually not stocked. 

Some items are only available as assemblies. Every effort has been made to clearly indicate which items 
are in assemblies and which are not. 

N/A will appear where a part number is not available. 

Current Part Numbers 

Okidata has made every effort to include current part numbers in this Service Handbook at the time of 
publishing. 

However, technical information frequently changes. These changes often include new or modified parts, 
with new or modified part numbers. 

Please refer to the following resources for current part numbers and pricing. 

■ Okidatas Electronic Bulletin Board (Okilink II) contains current part numbers, prices, and recommended 
stocking levels for each item listed as a recommended spare part. For instructions on accessing Okilink II, 
refer to the Service Center Reference Guide. 

■ Okidatas Faxable Facts is an automated fax document retrieval system. Part numbers and pricing are 
available through Faxable Facts. For instructions on accessing Faxable Facts, refer to the Service Center 
Reference Guide. 



■ Okidatas Technical Information Group is a telephone support line reserved for Authorized Dealers. Part 
numbers and pricing are available through Technical Information. For instructions on accessing Technical 
Information, refer to the Service Center Reference Guide. 

REMEMBER 

Current part numbers, recommended stocking levels, and pricing information are available through Okilink 
II, Faxable Facts, and Technical Information. Refer to the Service Center Reference Guide for information 
on accessing these resources. 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 188 

Ai/IRATA' Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.1.02 Definition of Terms 

Assemblies 

Assemblies are parts grouped under a single description and/or part number. Generally, individual items in 

an assembly are not available from Okidata. 

Assemblies are surrounded by broken line boxes in the diagrams. 

Assemblies will say "Includes xx xx" under the Comments section of the tables. 

Parts in assemblies will say "Part of xx" under the Comments section of the tables. 

Blank 

Okidata does not recommend stocking this item. This item should be purchased on an As 

Required Basis only. 

The availability of this item is A/OTguaranteed by Okidata. 

Consumable 

A consumable is a supply item which has a specified life and must be periodically replaced. It is 
purchased and installed by the end user. Okidata machines are designed to work exclusively with Okidata 
consumables. By using genuine Okidata consumable products, the investment made in the equipment is 
protected. 

Document 

A document is a printed item which supports the service and marketing of a product. Various documents 
are available from Okidata. 

Drivers 

Printer drivers are updated frequently. Please refer to Okilink II for the latest printer driver information. 

Firmware 

Firmware is revised frequently. Please refer to Okilink II for the latest firmware information. 

Option 

An option is a part/assembly which is added to a product. The option expands the products functionality. 
An option may or may not be installed by the end user. Instructions for installation accompany each 
option. 

Option RSPL 



Okidata recommends that this part/assembly be on hand for servicing installed options. 

RSPL 

Okidata recommends that this part/assembly be on hand for servicing. 

Technical Service Bulletins 

Technical Service Bulletins (TSBs) are also referred to as Okidata's monthly mail. 

The TSBs contain the latest information on firmware revisions, procedure changes, and technical 

information updates. 

Okidata distributes the TSBs through Okilink II. The TSBs are issued monthly. 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 189 

Ai/IRATA' Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.1.03 Parts Ordering Information 

Service Center Reference Guide 

When a technician has successfully completed a Service Training Course for a product and the Dealer 
has become Service Authorized, an information package is provided to the Dealer. The Okidata Service 
Center Reference Guide outlines the following items. 

• Responsibilities of Okidata Service Centers 

• Spare parts and consumables information 

• Procedures for warranty repairs 

• Product Training, Certification, and Authorization 

• Product Support information 

• Okidata Depot information and services 

• Third Party Service information 

■ Information about Okidata's Customer Information Center 

■ Okidata Service and Support telephone numbers. 

The Service Center Reference Guide contains the procedures to follow for ordering parts. Please read, 
understand, and follow these procedures. Service Authorization for a specific product must be obtained 
before a Dealer can submit warranty claims. 

Direct questions regarding the Service Center Reference Guide to Okidata Dealer Service. Refer to the 
Service Center Reference Guide for information on contacting Okidata. 

Placing a Parts Order 

All authorized Okidata resellers may order spare parts and consumables for Okidata products. 

Orders are placed through Okidata's Logistics Department. 

Please refer to your Service Center Reference Guide for details on ordering parts. 

You should have the following information available before you place your order. 

■ Okidata Dealer Authorization Number 

• Okidata Customer Number 



• Your Purchase Order Number 

■ Okidata Part Number(s) 

Use this Appendix, Okilink II, Faxable Facts, or contact Okidata Technical Support to find the 

correct part number. Refer to the Service Center Reference Guide for information on contacting Okidata. 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 190 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2 CHARTS 

Below is an index to the illustrated parts breakdown charts. 



Description 


Section 


Printer 


B.2.01 


Printer Unit 


B.2.02 


Paper Trays 


B.2.03 


Upper Unit (1 of 2) 


B.2.04 


Upper Unit (2 of 2) 


B.2.05 


LED Holder 


B.2.06 


Lower Unit (1 of 2) 


B.2.07 


Lower Unit (2 of 2) 


B.2.08 


Boards 


B.2.09 


Paper Eject Roller Assembly 


B.2.10 


Paper Supply Unit 


B.2.11 


Options 


B.2.12 


Font Cards 


B.2.13 


Second Paper Feed Unit 


B.2.14 


Packing Materials 


B.2.15 


Consumables 


B.2.16 


Documentation 


B.2.17 


Service Training Kit Revisions 


B.2.18 



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Page: 191 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.01 Printer 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


62409601 


Printer: OL810 
Parallel 120 V 




N/A 


1 


62409602 


Printer: OL810 Serial 
220/240V 




N/A 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
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Page: 192 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.02 Printer Unit 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




N^> 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


50213508 
4YA4083-5012G8 


Panel: Operator 
Assembly (OL810) 


RSPL 


3.2.02 



2 


70014501 
4YB4060-4145P20 


Font ROM Card 
(Letter Gothic) 


Option 


3.2.01 


2 


70014201 
4YB4060-4145P18 


Font ROM Card 
(Prestige Elite) 


Option 


3.2.01 


2 


70014401 
4YB4060-4144P7 


Font ROM Card 
(Tax) 


Option 


3.2.01 


3 


50213602 
1YX4083-2002G2 


Unit: Lower 


RSPL 


3.2.02 


4 


50213706 
1YX4083-2060G6 


Unit: Upper (120V) 


RSPL 


3.2.16 


4 


50213707 
1YX4083-2060G7 


Unit: Upper 
(220/240V) 


Option 


3.2.16 


5 


56609701 
3YS4011-1315P1 


Cord: AC (120V) 


RSPL 


3.2.01 


5 


56624301 
3YS4011-1266P1 


Cord: AC (220V) 


Option 


3.2.01 


5 


56624501 
3YS4011-1270P1 


Cord: AC 240 V (OL 
Series) UK 


Option 


3.2.01 


6 


55503501 
3PB4083-2816P2 


Filter: Ozone 


Consumable 
Part of 


3.2.36 


7 


50066601 
2PA4083-2055G1 


Stacker: Face-up 
Assembly 


RSPL 


3.2.02 


8 


53527301 
2PP4016-6836P1 


Fan Cover 




3.2.36 


9 


53338203 

1 PP4083-3243G3 


Cover: Upper 
w/logo(OL810) 


RSPL 


3.2.02 


10 


53527401 
3PP4016-6832P1 


Button 




3.2.03 


11 


51111301 
2PP401 6-6831 P1 


Shaft 




3.2.03 


12 


50917901 
4PP4016-6833P1 


Spring 




3.2.03 


13 


50918001 
4PP4083-2585P1 


Reset Spring 




3.2.02 


14 


N/A 
2PA4083-3225G1 


Stacker Cover 
Assembly 




3.2.02 


15 


N/A 
IPP4083-3223P1 


Access Cover 




3.2.02 



16* 


52046506 
4PB4012-2589P1 


Logo: Plate OL810 


RSPL 


3.2.02 


17* 


52054004 
3PB401 2-351 9P1 


Touch Sheet: Op 
Panel (OL810) 


RSPL 


3.2.02 



* This item is not shown. 



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Page: 193 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.03 Paper Trays 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 



r 



L 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to B.1.02 


Disassembly 
Procedure 


1 


70016701 
4YA4083-2414G1 


Paper Tray (A4) 


Option 


3.2.01 


1 


70013801 
4YA4083-2419G2 


Paper Tray 
(Envelope) 


Option 


3.2.01 


1 


70016801 
4YA4083-2418G1 


Paper Tray 
(Executive) 


Option 


3.2.01 



1 


70013701 
4YA4083-3207G8 


Paper Tray (Legal) 


Option 


3.2.01 


1 


70013601 
4YA4083-2120G1 


Paper Tray (Letter) 


RSPL/ Option 


3.2.01 


1 


70021901 
4YA4083-3206G1 


Paper Tray 
(Universal) 


Option 


3.2.01 


2 


53527602 
1PA4083-2321G2 


Tray Cover (Legal) 


Option RSPL 


3.2.01 


2 


53527601 
1PA4083-2321G1 


Tray Cover (Letter) 


RSPL /Option 


3.2.01 



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Page: 194 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.04 Upper Unit (1 of 2) 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 

.1 




/\\x, 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


52104201 
4YA4083-3202G1 


Toner Cartridge Kit 


Consumable 
Inc3 


3.2.01 


2 


56106601 
4YA4083-3201G1 


Image Drum Kit 


Consumable 


3.2.01 


3 


53500901 
3PB4083-2096P1 


Pad: Fuser 


Consumable 
Part of 1 


3.2.19 


4 


53503001 
4PP4083-2068P1 


Sensor Lever 
(Resist) 




3.2.21 


5 


53329601 
3PP4083-2069P1 


Sensor Flag (Resist) 




3.2.21 


6 


53527701 
4PP4083-2732G1 


Sensor Lever 
(Toner) 




3.2.21 


7 


50606001 
4PP4083-2584P1 


Rivet 




3.2.21 


8 


53527801 
4PP4083-2578P1 


Paper Eject Sensor 
Lever B 




3.2.18 


9 


53527901 
4PP4083-2589P1 


Paper Eject Sensor 
Lever C 




3.2.18 


10 


50312501 
4PP4083-2095P1 


Actuator 




3.2.17 


11 


51218501 
4PP4083-3130P1 


Gear: Idle "B" 


RSPL 


3.2.16 


12 


51005001 
3PP4083-2092P1 


Fulcrum Block 




3.2.16 


13 


53528001 
4PP4083-2757G1 


Transfer Wire 
Cleaner 




3.2.26 


14 


50918101 
4PP4083-2093P1 


Torsion Spring (Left) 




3.2.12 16 


15 


50918201 
4PP4083-2094P1 


Torsion Spring 
(Right) 




3.2.16 


16 


53058201 
4PP4083-2067P1 


Ground Plate (Drum) 




3.2.23 


17 


53058901 
3PP4083-2065P1 


Support Plate (Left) 




3.2.23 


18 


53329701 
1PP4083-2061P1 


Upper Frame 




3.2.23 



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/ r %|/|p|ATA Service Guide OL810 

%*J|\P U/%1/% Chapter B Illustrated Parts Listing 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 196 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.05 Upper Unit (2 of 2) 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 

,1 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


55044901 
2YX4083-2073G1 


Unit: Fusing (120V) 


RSPL 


3.2.19 


1 


55044902 
2YX4083-2073G4 


Unit: Fusing 
(220/240V) 


Option RSPL 


3.2.19 


2 


50914601 
4PP4083-2091P1 


Spring: Fusing Unit 


RSPL 


3.2.19 


3 


50917205 
LB-1 21 200-5 


Spring: Image Drum 
Tray 


RSPL 


3.2.22 


4 


53334302 
4PP4083-2848P2 


Pressure Roller 




3.2.20 


5 


51605802 
4PP4083-2071 P2 


Bearing 




3.2.20 


6 


51222701 
4PP4083-2819P1 


Pressure Roller 
Gear 




3.2.20 


7 


50914501 
4PP4083-2072P1 


Pressure Spring 




3.2.20 


8 


53502601 
3PP4083-2062P1 


Lock Lever (Left) 




3.2.22 


9 


53502701 
3PP4083-2063P1 


Lock Lever (Right) 




3.2.22 


10 


51110201 
4PP4083-2064P1 


Lock Lever Shaft 




3.2.22 


11 


50606216 
NK2-16-SUS 


Knock Pin 




3.2.22 


12 


50606208 
NK1-6-8-SUS 


Knock Pin 




3.2.20 


13 


56729701 
4PP4083-2066P1 


Ground Plate 
(Resist) 




3.2.20 





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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 197 

Ai/IRATA' Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.2.06 LED Holder 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


55622301 
4YA41 16-11 01 G1 


Unit: LED Head (300 
dpi OST) 


RSPL 


3.2.04 



2 


50914301 
4PP4083-2099P1 


Spring: Clamp (LED) 


RSPL 


3.2.04 


3 


50914101 
4PP4083-2088P1 


Spring: Bias (LED 
Head) 


RSPL 


3.2.04 


4 


55619601 
4PP4083-2087P1 


LED Head Housing 




3.2.23 


5 


51901301 
3PP4083-2594P1 


Knob (Left) 




3.2.24 


6 


51901401 
3PP4083-2595P1 


Knob (Right) 




3.2.24 


7 


50918301 
4PP4083-2596P1 


Pressure Spring 




3.2.24 


8 


53058401 
4PP4083-2090P1 


Ground Plate (LED 
Head) 




3.2.24 





Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 198 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.07 Lower Unit (1 of 2) 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 

i 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


50214506 
4YA4083-2124G6 


Unit: Paper Delivery 


RSPL 


3.2.30 


2 


50079101 
3PA4083-2897G1 


Roller: Registration 
(Assembly) 


RSPL 


3.2.27 


3 


50087401 
3PA4083-3143G1 


Charger: Transfer 
(Assembly) 


RSPL 


3.2.26 


4 


50079201 
4PA4083-2896G1 


Roller: Back-up 
(Assembly) 


RSPL 


3.2.25 


5 


50917001 
4PP4083-2295P1 


Spring: Cassette 


RSPL 


3.2.30 40 


6 


50914801 
4PP4083-2023P1 


Spring: Back-up 
Roller 


RSPL 


3.2.25 


7 


56508501 
270A2290P00001 


Fan: DC (Assembly) 


RSPL 


3.2.11 


8 


53335601 
4PP4083-3041P1 


Reinforcement Plate 




3.2.25 


9 


53334601 
4PP4083-2760P1 


Bias Roller 




3.2.14 


10 


50918401 
4PP4083-2776P1 


Bias Spring (Left) 




3.2.14 


11 


50918501 
4PP4083-2777P1 


Bias Spring (Right) 




3.2.14 


12 


51005101 
3PP4083-2566G1 


Fusing Guide 




3.2.25 


13 


51003601 
3PP4083-2035P1 


Sheet Guide 




3.2.25 


14 


53057801 

1 PP4083-2003P1 


Base Frame 




3.2.35 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 199 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.08 Lower Unit (2 of 2) 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


56507701 
3PB4083-2110P1 


Motor: Pulse (Main) 


RSPL 


3.2.09 


2 


51225701 
4PP4083-2593P1 


Gear: Stepper Motor 
Idle ("A") 


RSPL 


3.2.10 


3 


51218701 
3PP4083-2044P1 


Gear: Speed 
Reduction 


RSPL 


3.2.10 


4 


51218501 
4PP4083-3130P1 


Gear: Idle "B" 


RSPL 


3.2.10 


5 


51218601 
4PP4083-2045P1 


Gear: Idle (Base) 


RSPL 


3.2.29 


6 


53329501 
4PP4083-2046P1 


Post 


RSPL 


3.2.29 


7 


53528301 
2PP4083-2575P1 


Motor Cover 




3.2.09 


8 


53329301 
4PP4083-3059G1 


Motor Bracket 




3.2.09 


9 


56725901 
3PB4083-2108P1 


High Voltage 
Connector 




3.2.28 


10 


51901701 
3PB4083-2588P1 


Cap 




3.2.37 


11 


51802501 
4PB4083-2938P1 


Diselectrification 
Cloth 




3.2.30 





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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 200 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.09 Boards 



7 o: 8 




Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


56408710 
4YA4083-5017G10 


Power Supply 
(120V) 


RSPL 


3.2.12 


1 


56408708 
4YA4083-5017G8 


Power Supply 
(220/240V) 


Option 


3.2.12 


2 


55067502 
4YA4087-1022G2 


PCB: LLAT-2Eng 
Controller 


RSPL 


3.2.08 


3 


55046001 
3PU4003-5928P1 


PCB:LLID 


RSPL 


3.2.09 


4 


55067601 
4YA4046-1516G1 


PCB: OLMA Main 


RSPL 


3.2.07 


5 


55067701 
4YA4046-1520G1 


PCB: OLCA2nd 
Font Card 


RSPL 


3.2.07 


6 


55067801 


PCB: OLSA 
Serial l/F 


Option 


3.2.05 


7 


55067901 
4YA4046-1518G1 


PCB: OLRA2MB 
RAM 


Option 


3.2.06 


8 


55067902 
4YA4046-1518G2 


PCB: OLRA-2 1 
MB RAM 


Option 


3.2.06 


9 


53502301 
4PP4083-2103P1 


AC Cover 




3.2.12 


10 


53057901 
4PP4083-2048P1 


AC Contact Plate 




3.2.12 


11 


53528401 
3PP4083-2742P1 


Board Cover 




3.2.08 


12 


51008102 
3PA4083-3232G2 


Plate: Shield A 
Assembly (OL810) 


RSPL 


3.2.09 


13 


51008201 
3PA4083-3228P1 


Plate: Shield B 


RSPL 


3.2.05 


14 


55050721 
4YX4056-4259G1 


Microswitch 
Assembly (120V) 




3.2.13 


14 


N/A 
4YX4056-3735G2 


Microswitch 

Assembly 

(220-240V) 




3.2.13 


15 


55938201 
4YA4087-1025G1 


IC: Eng EEPROM 
BR93LC46A 


RSPL 


3.2.08 



16 


51008301 
3PP4083-3233P1 


Plate: Shield C 


RSPL 


3.2.09 


17 


51708201 
3PP4083-3235P1 


Bracket: Font 
Card Board 


RSPL 


3.2.07 


18 


51008401 
4PP4083-3231 P1 


Guide: Card (C) 


RSPL 


3.2.07 


19 


55923901 


IC: CU EEPROM 

MSM16811RS-N 

W 


RSPL 


3.2.07 


20* 


50515808 
143A1073P0008 


Spacer: Board 
with 18 mm screw 


RSPL 


3.2.08 


21 * 


50515801 
143A1073P0001 


Spacer: Board 
with 5 mm screw 


RSPL 


3.2.08 



* The spacers in items 20 and 21 are the same size. 

Screws are included with each spacer. 

The screw in item 20 is longer than than the screw in item 21 . 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 201 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.10 Paper Eject Roller Assembly 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 



1 


N/A 
N/A 


Paper Eject Roller 
Assembly 


Inc 2 - 9 


3.2.14 


2 


51005201 
2PP4083-2027P1 


Sheet Guide 




3.2.15 


3 


53334401 
4PB4083-2028P1 


Paper Eject Roller 




3.2.15 


4 


53334501 
4PP4083-2515P1 


Paper Eject Roller 
(Face-up) 




3.2.15 


5 


51111401 
3PP4083-2029P1 


Paper Eject Roller 
Shaft 




3.2.15 


6 


51222801 
4PP4083-2344P1 


Idle Gear (Paper 
Eject) 




3.2.15 


7 


50705301 
RE6-SUS 


E-Ring 




3.2.15 


8 


53528101 
3PP4083-2032P1 


Sensor Lever (Paper 
Eject) 




3.2.15 


9 


53528201 
3PP4083-2881P1 


Sheet Separator 




3.2.15 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 202 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.11 Paper Supply Unit 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Commen 
ts Refer 
toB.1.02 


Disassembly 
Procedure 


1 


55044601 
4YA4083-5011G1 


PCB: LLCC (Engine 
Connector) 


RSPL 


3.2.32 


2 


56507401 
4PB4083-2275P1 


Motor: Pulse 
(Resist) 


RSPL 


3.2.31 41 


3 


53500501 
4PP4083-2255G1 


Separator 


RSPL 


3.2.34 


4 


50081701 
4PA4083-3105G1 


Roller: Hopping 
(Assembly) 


RSPL 


3.2.33 


5 


50917101 
4PP4083-2270P1 


Spring: Separator 


RSPL 


3.2.34 


6 


51222901 
3PP4083-2265P1 


Hopping Gear 




3.2.33 


7 


51223001 
4PP4083-2282P1 


Planet Gear 




3.2.33 


8 


51223101 
4PP4083-2279P1 


Idle Gear "B" 




3.2.31 


9 


51223201 
4PP4083-2280P1 


Idle Gear "C" 
(OL810) 


RSPL 


3.2.15 


10 


53528501 
3PP4083-2268P1 


Paper End Lever 




3.2.33 


11 


53334901 
3PP4083-2261P1 


Hopping Roller B 




3.2.33 


12 


53528601 
3PP4083-2256P1 


Escape Lever 




3.2.34 


13 


53335002 
4PP4083-3057G2 


Motor Bracket 




3.2.31 


14 


53335101 
2PP4083-2269P1 


Upper Plate 




3.2.34 


15 


51111501 
3PP4083-3092P1 


Hopping Roller Shaft 




3.2.33 


16 


50705401 
RE6-SUS 


E-Ring 




3.2.33 


17 


53335201 
3PA4083-2562G1 


Side Frame 
Assembly (Left) 




3.2.34 


18 


53335301 

1 PP4083-2252P1 


Side Frame 
Assembly (Right) 




3.2.34 



19 


53335401 

1 PP4083-2253P1 


Separator Frame 




3.2.34 


20 


53528701 
3PP4083-2266P1 


Setting Lever 




3.2.34 


21 


53528801 
4PP4083-2267P1 


Latch Lever 




3.2.34 


22 


50918601 
4PP4083-2271P1 


Latch Spring 




3.2.34 


23 


51111601 
4PP4083-2296P1 


Latch Shaft 




3.2.34 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 203 

/ r %|/|p|ATA Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.2.12 Options 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




,--:---/ 




2 and 3 



Not Shown 



V 




f 




/ 



ia 






Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


55067801 


PCB: OLSA Serial 

l/F 


Option 


3.2.05 



2 


55067901 
4YA4046-1518G1 


PCB: OLRA2MB 
RAM 


Option 


3.2.06 


3 


55067902 
4YA4046-1518G2 


PCB: OLRA-2 1 MB 
RAM 


Option 


3.2.06 


5 


50213707 
1YX4083-2060G7 


Unit: Upper 
(220/240V) 


Option 


3.2.16 


6 


56624301 
3YS4011-1266P1 


Cord: AC (220V) 


Option 


3.2.01 


6 


56624501 
3YS4011-1270P1 


Cord: AC 240 V (OL 
Series) UK 


Option 


3.2.01 


8 


55044902 
2YX4083-2073G4 


Unit: Fusing 
(220/240V) 


Option RSPL 


3.2.19 


9 


56408708 
4YA4083-5017G8 


Power Supply 
(220/240V) 


Option 


3.2.12 


10 


N/A 
4YX4056-3735G2 


Microswitch 

Assembly 

(220-240V) 




3.2.13 


11 


70018601 
N/A 


Second Paper Feed 
Unit 


Option 


3.2.37 


12 


50063501 
1YX4083-2285G1 


Second Paper 
Supply Unit 


Option RSPL 


3.2.39 


13 


55051401 
4YA4083-5015G1 


PCB: LLFC (2nd 
Tray) 


Option RSPL 


3.2.42 


14* 


70021201 


Serial Interface Kit 


Option 


3.2.05 


15* 


70021001 


1 MB Memory Board 
Kit 


Option 


3.2.06 


16* 


70021101 


2 MB Memory Board 
Kit 


Option 


3.2.06 


17* 


70022101 


Adobe PostScript Kit 


Option 


N/A 



This item is not shown. 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 204 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.13 Font Cards 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.' 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 * 


70017101 


Bar Code Plus 


Option 


3.2.01 


1 * 


70021401 


Dazzling 
Presentations 


Option 


3.2.01 


1 * 


70017201 


Micro Docs 


Option 


3.2.01 


1 * 


70017301 


OkiPro 65 


Option 


3.2.01 


1 * 


70014001 


Roman Font Card 
(S2) 


Option 


3.2.01 


1 * 


70021301 


Special Documents 


Option 


3.2.01 


1 * 


70021501 


WP Scalable 


Option 


3.2.01 


1 * 


70014501 
4YB4060-4145P20 


Font ROM Card 
(Letter Gothic) 


Option 


3.2.01 


1 * 


70014201 
4YB4060-4145P18 


Font ROM Card 
(Prestige Elite) 


Option 


3.2.01 


1 * 


70014401 
4YB4060-4144P7 


Font ROM Card 
(Tax) 


Option 


3.2.01 



* This item is not shown. 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 205 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.14 Second Paper Feed Unit 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 



1 includes all items shown 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


70018601 
N/A 


Second Paper Feed 
Unit Includes all 
items shown 


Option Inc. 2 - 
15 


3.2.37 


2 


50063501 
1YX4083-2285G1 


Second Paper 
Supply Unit 


Option RSPL 
Part of 1 


3.2.39 


3 


55051401 
4YA4083-5015G1 


PCB: LLFC (2nd 
Tray) 


Option RSPL 
Part of 1 


3.2.42 


4 


55067001 
4YR4046-1496G1 


PCB: LLIF 


Part of 1 


3.2.38 


5 


55067101 
3PU4009-1238P1 


Connection PCB 
(LLIG) 


Part of 1 


3.2.38 


6 


56726001 
224A1282P0081 


Connector PM8DOX 


Part of 1 


3.2.38 


7 


56725201 
224A1157P0401 


Connector 
AKJ-40AG 


Part of 1 


3.2.38 


8 


N/A 
2PP4016-6855P1 


Blind Cover 


Part of 1 


3.2.37 


9 


53059501 
1PP4016-6792P1 


Blind Cover 


Part of 1 


3.2.37 


10 


N/A 
3PA4094-4233G1 


Blind Cover (Rear 
Panel) 


Part of 1 


3.2.37 


11 


N/A 
4PP4083-3109P1 


Thumb Screw 


Part of 1 


3.2.37 


12 


53059401 
1PP401 6-6791 P1 


Lower Base 


Part of 1 


3.2.37 


13 


N/A 
2PP4094-4999G1 


Shield Base 


Part of 1 


3.2.37 


14 


N/A 
2PA4094-5002G2 


Top Plate Assembly 


Part of 1 


3.2.37 


15 


53505301 
4PB4020-1510P1 


Rubber Foot 


Part of 1 


3.2.37 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 206 

Ai/IRATA' Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.2.15 Packing Materials 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 




Item 


Okidata P/N 
Oki-J P/N 


Description 


Comment 
s Refer to 
B.1.02 


Disassembly 
Procedure 



1 


53557201 
3PP4083-3250P1 


Foam: Packaging 
(OL400/830/81 0) 


RSPL 


N/A 


2 


53555903 
N/A 


Box: Graphic 
(OL810) 


RSPL 


N/A 


3 


53564801 


Tray: OL Series 
Accessory 


RSPL 


N/A 


4 


53562003 
N/A 


Assembly: Image 
Drum Repackaging 


RSPL 


N/A 


5* 


53422613 


Bag: Black Velostat 


RSPL 


N/A 



* This item is not shown. 



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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 207 

Ai/IRATA' Service Guide OL810 

VJI\f U/%1/% Chapter B Illustrated Parts Listing 



B.2. 16 Consumables 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 



~1 







leqlm :ji*c. 



1 



* 7 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 


56106601 
4YA4083-3201G1 


Image Drum Kit 


Consumable 
Inc2and3 


3.2.01 



2 


N/A 
N/A 


Image Drum 
Cartridge 


Consumable 
Part of 1 


3.2.01 


3 


55503501 
3PB4083-2816P2 


Filter: Ozome 


Consumable 
Part of 1 


3.2.36 


4 


52104201 
4YA4083-3202G1 


Toner Cartridge Kit 


Consumable 
Inc56 7 


3.2.01 


5 


N/A 
N/A 


Toner Cartridge 


Consumable 
Part of 4 


3.2.01 


6 


53500901 
3PB4083-2096P1 


Pad: Fuser 


Consumable 
Part of 4 


3.2.19 


7 


N/A 
N/A 


LED Lens Cleaner 


Consumable 
Part of 4 


N/A 





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Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



Page: 208 



OKIDATA 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.17 Documentation 

Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1 # 


58225901 


Kit: OL810 Service 
Training 


Document 


N/A 


1 # 


58225902 


Kit: OL810 Service 
Training 


Document 


N/A 


1 # 


58225903 


Kit: OL810 Service 
Training 


Document 


N/A 


2 


59250201 


Manual: 
Maintenance 


Document 


N/A 


3 


59254091 


Manual: 
Troubleshooting 


Document 


N/A 


4 


59249901 


Product 
Specifications 


Document 


N/A 


5 


58227402 


Package: User's 
Documentation 


Document 
Inc. 7-10 


N/A 


6 


58083502 


Sheet: License 
Agreement 


Document 
Part of 6 


N/A 


7 


59222903 


Booklet: Font and 
Accessory 


Document 
Part of 6 


N/A 


8 


59250402 


Handbook: Printer 


Document 
Part of 6 


N/A 


9 


53436027 


Bag: Zip Lock 8" x 
10" 


Document 
Part of 6 


N/A 



* To order Marketing Literature, complete an Okidata Marketing Literature Order Form. Fax the completed 
form to Okidata Marketing Communications. 

* * Obtain this form by faxing a request to Okidata Marketing Communications. Refer to the Service Center 
Reference Guide for information on contacting Okidata. 

* See the following pages 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments Refer to 
B.1.02 


Disassembly 
Procedure 


10 


N/A 
N/A 


Okidata Service 
Center Reference 
Guide 


Document 


N/A 


11 


53547501 
N/A 


Okidata Support 
3-Ring Binder 


Document 


N/A 


12 


58067201 
N/A 


ABCD Warranty 
Claim Forms (Pkg of 
20) 


Document 


N/A 


13 


58052401 
N/A 


Warranty Summary 
Forms (Pkg of 20) 


Document 


N/A 


14 


N/A 
N/A 


Printer Drivers 


Refer to Okilink 


N/A 


15 


N/A 
N/A 


Product Updates 


Document Refer to 
Okilink 


N/A 


16 


N/A 
N/A 


Recommended 
Spare Parts List 


Document Refer to 
Okilink 


N/A 


17 


N/A 
N/A 


Software 


Refer to Okilink 


N/A 


18 


N/A 
N/A 


Technical Service 
Bulletins 


Document Refer to 
Okilink 


N/A 


19* 


N/A 
N/A 


Marketing Literature 


Document 


N/A 


20** 


N/A 
N/A 


Okidata Marketing 
Literature Order 
Form 


Document 


N/A 



* To order Marketing Literature, complete an Okidata Marketing Literature Order Form. Fax the completed 
form to Okidata Marketing Communications. 

* * Obtain this form by faxing a request to Okidata Marketing Communications. Refer to the Service Center 
Reference Guide for information on contacting Okidata. 

* See the following pages 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com) 



OKIDATA 



Page: 209 



Service Guide OL810 

Chapter B Illustrated Parts Listing 



B.2.18 Service Training Kit Revisions 

P/N 58225901 OL810 Service Training Kit 

This kit was replaced by P/N 58225902. 

Items in the training kit (except for the Printer Handbook) are NOT available separately. 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1A 


58225901 


Kit: OL810 Service 
Training 


Document 
Both 


N/A 


2A 


52054901 


Label: OL810 Kit 


Document 


N/A 


3A 


58226001 


Package: 
Administration 


Document 


N/A 


4A 


58226001 


Envelop: 

Administration 

Package 


Document 


N/A 


5A 


58078501 


Letter: Cover 


Document 


N/A 


6A 


59251301 


Guide: Training 


Document 


N/A 


7A 


58078601 


Test: Certification 


Document 


N/A 


8A 


58078701 


Sheet: Test Answer 


Document 


N/A 


9A 


57078801 


Critique: Course 


Document 


N/A 


10A 


58078901 


Envelope: 
Pre-Printed Return 


Document 


N/A 


11A 


59226301 


Introduction to 
Xerography 


Document 


N/A 


12A 


59251401 


Handbook: OL810 
Service 


Document 


N/A 


13A 


59251501 


Documentation: 
User's 


Document 


N/A 


14A 


59250401 


Printer Handbook 


Document 


N/A 



15A 


57518501 


Video: OL810 
Service Training 


Document 


N/A 


16A 


52054902 


Label: OL810 Video 
Case 


Document 


N/A 


16A 


52054903 


Label: OL810 Video 
(Front) 


Document 


N/A 


18A 


52054904 


Label: OL810 Video 
(Spine) 


Document 


N/A 


19A 


57517101 


Case: Red Vinyl 
Video 


Document 


N/A 


20A 


53533001 


Box: Storage 


Document 


N/A 



P/N 58225902 OL810 Service Training Kit 

This kit was replaced by P/N 58225903. 

Items in the training kit (except for the Printer Handbook) are NOT available separately. 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1B 


58225902 


OL810 Service 
Training Kit 


Document 


N/A 


2B 


52054905 


Label: OL810 Kit 


Document 


N/A 


3B 


58226002 


Package: 
Administration 


Document 


N/A 


4B 


58226002 


Envelop: 

Administration 

Package 


Document 


N/A 


5B 


58078502 


Letter: Cover 


Document 


N/A 


6B 


59251302 


Guide: Training 


Document 


N/A 


7B 


58078602 


Test: Certification 


Document 


N/A 


8B 


58078702 


Sheet: Test Answer 


Document 


N/A 


9B 


57078802 


Critique: Course 


Document 


N/A 


10B 


58079802 


Envelope: 
Pre-Printed Return 


Document 


N/A 


11B 


59226301 


Introduction to 
Xerography 


Document 


N/A 



12B 


59251402 


Handbook: OL810 
Service 


Document 


N/A 


13B 


59251502 


Documentation: 
User's 


Document 


N/A 


14B 


58077901 


Handbook: 
Addendum 


Document 


N/A 


15B 


58077801 


Product Update 


Document 


N/A 


16B 


59250401 


Printer Handbook 


Document 


N/A 


17B 


57518501 


Video: OL810 
Service Training 


Document 


N/A 


18B 


52054902 


Label: OL810 Video 
Case 


Document 


N/A 


19B 


52054903 


Label: OL810 Video 
(Front) 


Document 


N/A 


20B 


52054904 


Label: OL810 Video 
(Spine) 


Document 


N/A 


21 B 


57517101 


Case: Red Vinyl 
Video 


Document 


N/A 


22B 


53567001 


Box: Storage 


Document 


N/A 


23B 


53567101 


Sleeve: Cardboard 


Document 


N/A 



P/N 58225903 OL810 Service Training Kit 

This kit replaces P/N 58225902. 

Items in the training kit (except for the Printer Handbook) are NOT available separately. 



Item 


Okidata P/N 
Oki-J P/N 


Description 


Comments 
Refer to 
B.1.02 


Disassembly 
Procedure 


1C 


52054906 


Label: OL810 Kit 


Document 


N/A 


2C 


58078503 


Sheet: Read Me 
First 


Document 


N/A 


3C 


59251403 


Handbook: OL810 
Service 


Document 


N/A 


4C 


59250402 


Handbook: OL810 
Printer 


Document 


N/A 


5C 


57518501 


Video: OL810 
Service Training 


Document 


N/A 



6C 


52054904 


Label: OL810 Video 
(Spine) 


Document 


N/A 


7C 


53570401 


Sleeve: Videotape 
(Cardboard) 


Document 


N/A 



Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business 
Partner Exchange (BPX) for any updates to this material, (http://bpx.okidata.com)